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Help, tab very slow after 5-10min

After using my tab for 5-10min after a restart, my tab become very slow, to the point of it being unusable. I haven't installed any new apps, just updated some from marketplace, which I deleted. It started this morning. I'm running stock jjb Tmo usa. My tab is also rooted just to freeze some application with T. Backup.
Anyone else experience this? What could I try?
Sent from my SGH-T849 using Tapatalk

install advanced task killer and check what you have running. Kill some apps and see which helps.
once you have found the cause uninstall it and find alternative, If its a system app freeze it or uninstall it with systemapp remover.

I hardreset my tab yesterday, I kept some apps using titanium backup, only the important stuff and I have to say, it's way much faster.
I had several lags and crashes but now Im good

Ok I did a hard reset and my tab was working fine for a few days and now it's back doing the same, going really really slow after a few min of using it. I killed all apps and not even a spec faster... Is it my tab? Should I format internal SD card?
Sent from my HTC Glacier using Tapatalk

nysoprano said:
Ok I did a hard reset and my tab was working fine for a few days and now it's back doing the same, going really really slow after a few min of using it. I killed all apps and not even a spec faster... Is it my tab? Should I format internal SD card?
Sent from my HTC Glacier using Tapatalk
Click to expand...
Click to collapse
Sorry to say but don't use Task Killer. It won't help since it only lists what is residing in memory without any other useful info on what to kill.
The most you can do with it , is blindly killing them which doesn't help with the performance or might break something else. The best alternative is Active Apps or watchdog lite which monitors application's CPU usage.
A tip if you just start Android,
Try to use back button ( Close Application) rather than Home ( Put application on standby mode). If you forgot to close applications, try to use Active Apps / Samsung Task Manager to see if anything is left running and close them.
Hope this helps.

Nope, still getting random slow downs. Anyone using launcher pro? After reset, my tab slows down after a few hours. Slow to the point of not being able to do anything but restart.
Sent from my SGH-T849 using Tapatalk

nysoprano said:
Nope, still getting random slow downs. Anyone using launcher pro? After reset, my tab slows down after a few hours. Slow to the point of not being able to do anything but restart.
Sent from my SGH-T849 using Tapatalk
Click to expand...
Click to collapse
Had my Tab for several months now using Launcher Pro and various roms without the problems you're having.
Are you using a custom kernel with overclocking and profiles? If so try reverting to stock speed (1000MHz) without profiles.
You could also try a full wipe and reinstall rom without any apps and see what happens. If ok install apps one at a time and test and see which app, if any, causes the problem

look in errlog
download error log from marked and see if u have continues errors.. close any 3d party apps and start the logger, then start any 3rd party 1by1 and see if it generates errors..

I'm running pure stock, us tmo jjb rom. I'm rooted but left rom alone. No overclocking either.
I downloaded log toast, anything special i should look out for? There's a lot of info, don't know what to make of it.
If It keeps happening, might just install new rom.
Sent from my SGH-T849 using Tapatalk

Ok so i installed log toast and i was monitoring all the errors on my tab. After a fresh restart, i was looking at this thing get errors for:
E BluetoothAudioGateway.cpp(2573)
Pollhup detected
It kept showing over and over and over, but no slow down...I think it was because i had bluetooth turned on.
So right when it started to slowdown really bad, keep in mind that i kept it on the home screen and wasn't using it, just connected to charger and that's it, i started getting a new error message:
E IMGSRV(2497)
PVRSRVEventObjectWait Timeout!
Anyone know what this means??

nysoprano said:
Ok so i installed log toast and i was monitoring all the errors on my tab. After a fresh restart, i was looking at this thing get errors for:
E BluetoothAudioGateway.cpp(2573)
Pollhup detected
It kept showing over and over and over, but no slow down...I think it was because i had bluetooth turned on.
So right when it started to slowdown really bad, keep in mind that i kept it on the home screen and wasn't using it, just connected to charger and that's it, i started getting a new error message:
E IMGSRV(2497)
PVRSRVEventObjectWait Timeout!
Anyone know what this means??
Click to expand...
Click to collapse
maybe the rom that you have now has defects which is quite common. if I were you I would flash to overcome version which runs better or return that to samsung for checking.
Sent from my GT-P1000 using Tapatalk

It's weird I have been experiencing the same type of things. I'm on defualt Verizon rom with superoneclick rooting. Everything else is stock. Started happening yesterday. Maybe it is linked to the update Verizon pushed out? I'm going to start looking into whether I received the update or not and work from there? Keep us posted nysoprano.

elnews said:
maybe the rom that you have now has defects which is quite common. if I were you I would flash to overcome version which runs better or return that to samsung for checking.
Sent from my GT-P1000 using Tapatalk
Click to expand...
Click to collapse
tried searching for both ure errors, came up blank, even if they would repeat endlessly it would not slow the system down that mutch. U tried a factory data reset right? guess u could flash a alternative kernel/rom and look for same trouble if so u would assume hw problems? sorry for no straight answer.

Is Advanced task killer rubbish?
TheATHEiST said:
install advanced task killer and check what you have running. Kill some apps and see which helps.
once you have found the cause uninstall it and find alternative, If its a system app freeze it or uninstall it with systemapp remover.
Click to expand...
Click to collapse
Actually my experience with Advance Task Killer (ATK) is that there is never a remarkable improvement! When you kill apps listed as running sometimes freed memory report seem to be temperamental - reduced, no change, increase...
The shocking thing is that killed processes quickly reappears in the list again!
Is there a better app than ATK out there that truly terminates and frees memory?
Ta.

nysoprano said:
Ok so i installed log toast and i was monitoring all the errors on my tab. After a fresh restart, i was looking at this thing get errors for:
E BluetoothAudioGateway.cpp(2573)
Pollhup detected
It kept showing over and over and over, but no slow down...I think it was because i had bluetooth turned on.
So right when it started to slowdown really bad, keep in mind that i kept it on the home screen and wasn't using it, just connected to charger and that's it, i started getting a new error message:
E IMGSRV(2497)
PVRSRVEventObjectWait Timeout!
Anyone know what this means??
Click to expand...
Click to collapse
I am having the identical issue. I have a completely stock AT&T tab (no root, no overclocking, no custom ROM, etc.) I have turned off Bluetooth, and it seems to have fixed the issue. Possibly a Samsung Bluetooth bug?

[Q] Phone Unresponsiveness

Hello Community!!
I am seeing a problem with my Revo, and I'm putting it out here because you guys are good at finding answers.
I am running Gingervolt 1.3 with the blitzkreig kernel installed. I have previously tried Hicks' little ICS responsiveness script.
Here is my problem. Most days after little to moderate use, Phone/text, I have to reboot my phone by either soft reboot (power button) or a hard reboot (battery pull) because nothing at all is responding. By nothing I mean, touch the screen..nothing, open a program...nothing...etc.
It is a slow degrade sometimes where (and my wife has mentioned it using my phone) that the touch screen is really really laggy and non responsive, especially when using a keyboard or even trying to play angry birds.
I have done a full wipe including data, cache, dalvik. I have formatted my internal and removable SD card, I have not used previous backups, instead resorted to downloading programs and installing from scratch.
This is a very frustrating issue. If it was a computer I'd say either the processor was overworking, or the ram was used up. But since we don't use program killers in GB I'm kind of at a loss. And I'm tired of having to wipe my phone every few days just so I have meh performance (and no, I'm not hating on the phone, or the rom or any of the developers, nor do I have any interest in changing phones,etc)
I'm just looking for suggestions/solutions etc. I'm sure I missed something in my troubleshooting steps.
Thanks in advance for those who read through this and try to give a hand. I appreciate it.

Wow. Since you've already gone to extreme measures, I'm at a loss. My suggestion would be to freeze the apps you do install to look for a culprit there. Or, don't install any and see how the phone performs.
I restored a nandroid prior to Google's 10¢ apps promo and my phone is back in fine form. It was lagging badly before that. I was rebooting daily. Now I go for days and the phone's solid.
Sent from my VS910 4G using Tapatalk

I was experiencing similar issues about a week after updating to blitzkrieg 1.0. I restored from backup and it's been stable since. I just installed 2.0 today, so I'm curious to see if it'll have the same effect.
Sent from my VS910 4G using xda premium

I can't say yet whether or not 2.0 has added to or taken away from the response type issues. I did have to do a couple of battery pulls yesterday just to get firefox to do anything. I'm going to uninstall that one. I may, just for S&G's do one more factory wipe and put all the tweaks and mods in place before downloading anything but the most essential programs. I did this phone, but the unresponsiveness sometimes can be a real pain.

What do you have it clocked at? I have issues at 1.9 so maybe back it down a bit. I get lots of screen freezes and have had some rebooting issues at 1.9
Sent from my VS910 4G using XDA App

revo_65 said:
What do you have it clocked at? I have issues at 1.9 so maybe back it down a bit. I get lots of screen freezes and have had some rebooting issues at 1.9
Sent from my VS910 4G using XDA App
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Click to collapse
Currently I have it at 1.7, before when it was really bad, the oc wasn't sticking and I was at 1024, so not overclocked much. I am sure its an app that is causing the problem, but I'm not sure what.

I've never had this type of issue using Blietzkreig or any of the other tweaks so I'd guess you're right in thinking it's an app. Since you've pretty much tried everything else I would say maybe try going back to complete stock then rooting again? That just seems like what I would try if I had tried everything else and nothing worked.
And yeah you definitely don't want to overclock too much because it could definitely damage the hardware of your phone since it's not meant to run at that level. But you said you had it at 1.0ghz so it doesn't seem like that is the problem unless the damage was cause when running at 1.7ghz. I had mine at 1.9 and didn't see any issues except my phone randomly started to vibrate for a while then just restart. It did that twice when i first flashed everything but it seems fine now. I brought it down to 1.0ghz just cuz i'm not really using it now and I don't want it causing any problems with the hardware.

Thanks for the Feedback everyone. I am not sure what the issue is/was/going to be. I think Firefox was a big part of it and I have since removed it. But I am still getting random freezes, almost like the deep sleep while the screen is on. Oh well, maybe I do need to go back to complete stock.

[Q] ROM's progressively get slower after each use

Quick one here, I hope. I flash a new ROM everyone few weeks or so and when I do it seems very fast at first then just starts to chug like no other. Happens with CM9, CM10, AOKP, Slimbean, helly bean, etc. I know it's not the ROM then. I do the standard wipe/reset and then flash the ROM, then flash the Gapps, then let it boot up and go from there. Not sure if I really need to wipe the cache partition, or cache, or davlik cache...but usually do. Why do they always seem to slow down so easily ?
I use a wiki widget, sound search, and the clock... nothing more and close apps out often. It just seems to chug when just navigating, or going through pictures, or just typing. Any ideas or good habits I should have ? Thanks !

Bad question? Anyone I can ask ? Thanks
Sent from my SGH-I897 using xda app-developers app

One thing that I found to help was to reboot the phone every night. I flashed often, so I set schedule in titanium backup premium to redo my backup every night, and then reboot the phone. This dramatically helped the rom slowdown.
Sent from my AT100 using Tapatalk 2

cheddleson said:
One thing that I found to help was to reboot the phone every night. I flashed often, so I set schedule in titanium backup premium to redo my backup every night, and then reboot the phone. This dramatically helped the rom slowdown.
Sent from my AT100 using Tapatalk 2
Click to expand...
Click to collapse
I agree with this. Also, all roms naturally tend to get slower after use. One reason they get slower is due to human psychology. We become used to the rom's speed, so it seems slower after a period of time. Another reason is all the data that is created after you start using a rom. During day to day usage of your phone, a lot of caches and personal data is stored, so they clunk up your system and ultimately slow down your phone. Rebooting deletes a lot of temporary caches and restarts services that may have started leaking memory, so it speeds up your phone.

Does S-Off hurt battery life?

I've noticed a significant drop in battery life over the last few months corresponding directly to when I S-off'd my device. I've RUU'd, wiped, reformat, all of the usual stuff to make sure it's not crud apps, sync off, wifi scanning off, google now off, etc etc.
The reason I'm wondering about specifically S-off being the culprit is due to the clause HTC includes at the beginning of phone setup.. 'regardless of your 'contact htc' option, your device is considered a test device so it doesn't matter what you choose, your phone will always talk to HTC' (paraphrased). If the phone is capturing and updating various testing metrics to HTC it's never really sleeping and constantly keeping a data connection alive (even if very little data is sent).
I'm attaching a screenshot of what really 'broke the camels back' (or however it goes..). I'm not sure why wifi is shown as being on, it is most definitely turned off from the drop down panel.
Less than 5H of the phone being off the charger, less than 30M of screen on time.. something is keeping it alive and I have no idea what. This is a fresh install, I wiped the phone (w/ no restore) 3 days earlier. Amazon, Plex, Chromecast and Netflix installed. (amazon downloaded an album i had purchased, but that's it)
I've never had good battery life, but this is now in abysmal territory.

pbassjunk said:
I've noticed a significant drop in battery life over the last few months corresponding directly to when I S-off'd my device. I've RUU'd, wiped, reformat, all of the usual stuff to make sure it's not crud apps, sync off, wifi scanning off, google now off, etc etc.
The reason I'm wondering about specifically S-off being the culprit is due to the clause HTC includes at the beginning of phone setup.. 'regardless of your 'contact htc' option, your device is considered a test device so it doesn't matter what you choose, your phone will always talk to HTC' (paraphrased). If the phone is capturing and updating various testing metrics to HTC it's never really sleeping and constantly keeping a data connection alive (even if very little data is sent).
I'm attaching a screenshot of what really 'broke the camels back' (or however it goes..). I'm not sure why wifi is shown as being on, it is most definitely turned off from the drop down panel.
Less than 5H of the phone being off the charger, less than 30M of screen on time.. something is keeping it alive and I have no idea what. This is a fresh install, I wiped the phone (w/ no restore) 3 days earlier. Amazon, Plex, Chromecast and Netflix installed. (amazon downloaded an album i had purchased, but that's it)
I've never had good battery life, but this is now in abysmal territory.
Click to expand...
Click to collapse
S-OFF won't affect battery afaik, because on my One I'm getting the same battery life as I did before I did S-OFF. Try using a wakelock detector to see what's affecting your battery. Also, try flashing a custom kernel (such as Kangaroo Kernel) and see if that improves battery life.

No.
Sent from my HTCONE using XDA Premium 4 mobile app

_Epic said:
No.
Sent from my HTCONE using XDA Premium 4 mobile app
Click to expand...
Click to collapse
^^^
Correct me if I'm wrong, but rooting, custom recoveries, S-off, changing pretty much anything that isn't the OS or the kernel will not affect the operation of the device. It will only ALLOW you to change it.
On a side note, you know what scares the living crap out of me? When I'm on a stock ROM and the Dialer asks for superuser. What the hell is up with that?

sauprankul said:
^^^
Correct me if I'm wrong, but rooting, custom recoveries, S-off, changing pretty much anything that isn't the OS or the kernel will not affect the operation of the device. It will only ALLOW you to change it.
On a side note, you know what scares the living crap out of me? When I'm on a stock ROM and the Dialer asks for superuser. What the hell is up with that?
Click to expand...
Click to collapse
System apps in a stock ROM usually already have Super User permissions. When you root and install SuperSU all apps must ask for super user permissions again. There's a check box in the settings to auto allow them. Previously I don't think regular SuperUser made system apps get permission again.

spacious said:
System apps in a stock ROM usually already have Super User permissions. When you root and install SuperSU all apps must ask for super user permissions again. There's a check box in the settings to auto allow them. Previously I don't think regular SuperUser made system apps get permission again.
Click to expand...
Click to collapse
Yeah I should have googled it before posting lol . Thanks

I S-Off'd on 1.55 Modified and have not seen any change in battery life, it should not be depended on S-Off but rather the Rom and Configuration you are using.

Nexus 6 requires rebooting every day or so as it slows down to become unusable

I have a N6 purchased Dec 2015 new from Amazon. The only mods, if you can call it that is, I have unlocked the boot loader. I am currently running N6F26Y sideloaded via ADB.
The phone was great when I first got it but now after about a day or so of usage it becomes slow and sluggish and unresponsive I have to restart it to use it. I have done a factory reset a couple of times which gets it back to normal for a week or so and then the problem recurs. Occasionally I will delete the cache which also helps. Snapchat is one of the worse apps - crashes the phone regularly and is a very slow app.
Also the camera can get very slow often taking seconds to take one photo.
I love the phone but it's becoming unusable now. The contrast between this and a new phone (I have purchased a Moto Z) is like night and day. The Moto Z runs instantly, has no lag and is a nice phone. But what I like about the N6 is the large screen which makes it great for videos etc.
Short of perhaps flashing some custom ROM is there anything I could be doing?

I'd recommend flashing a rom like pure nexus, super stable that should fix your problem, otherwise you've done all you can and is the easiest fix
Sent from my Nexus 6 using Tapatalk

lchiu7 said:
I have a N6 purchased Dec 2015 new from Amazon. The only mods, if you can call it that is, I have unlocked the boot loader. I am currently running N6F26Y sideloaded via ADB.
The phone was great when I first got it but now after about a day or so of usage it becomes slow and sluggish and unresponsive I have to restart it to use it. I have done a factory reset a couple of times which gets it back to normal for a week or so and then the problem recurs. Occasionally I will delete the cache which also helps. Snapchat is one of the worse apps - crashes the phone regularly and is a very slow app.
Also the camera can get very slow often taking seconds to take one photo.
I love the phone but it's becoming unusable now. The contrast between this and a new phone (I have purchased a Moto Z) is like night and day. The Moto Z runs instantly, has no lag and is a nice phone. But what I like about the N6 is the large screen which makes it great for videos etc.
Short of perhaps flashing some custom ROM is there anything I could be doing?
Click to expand...
Click to collapse
Hello,
It seems like some apps are really slowing down your phone. I use my N6 at home for web browsing mostly as I have a Pixel XL now. Just like you I love the screen size.
The camera has always been slow fore, because of the time it takes to focus...
Did you try using your phone a few days without Snapchat installed? Maybe you also have other misbehaving​ apps installed.
Uninstall Snapchat and other apps and start from here. Reinstall one per one with a few days interval. See if the issue still occurs.
Installing a custom ROM + kernel will likely speed up things a little bit. I second @Dugaldrob with Pure Nexus and I'd suggest ElementalX kernel on top. Running this combo on N6, N6P and Pixel XL and they work flawlessly.
I don't believe installing a custom ROM alone will fix your issue though. Stock ROM shouldn't cause the phone to slow down to the point you need to reboot to use it.
Finding the culprit will...
Good luck...

5.1 said:
Hello,
It seems like some apps are really slowing down your phone. I use my N6 at home for web browsing mostly as I have a Pixel XL now. Just like you I love the screen size.
The camera has always been slow fore, because of the time it takes to focus...
Did you try using your phone a few days without Snapchat installed? Maybe you also have other misbehaving​ apps installed.
Uninstall Snapchat and other apps and start from here. Reinstall one per one with a few days interval. See if the issue still occurs.
Installing a custom ROM + kernel will likely speed up things a little bit. I second @Dugaldrob with Pure Nexus and I'd suggest ElementalX kernel on top. Running this combo on N6, N6P and Pixel XL and they work flawlessly.
I don't believe installing a custom ROM alone will fix your issue though. Stock ROM shouldn't cause the phone to slow down to the point you need to reboot to use it.
Finding the culprit will...
Good luck...
Click to expand...
Click to collapse
Thanks
First step is to remove Snapchat. I rarely use the app and only because my daughter sends stuff on it. I am going to tell her to send me stuff via another method
If that doesn't work then it's a new ROM. I have performed ROM installs before but have never flashed a new kernel on a phone before so that will be a new experience. Hopefully I won't brick the phone

lchiu7 said:
Thanks
First step is to remove Snapchat. I rarely use the app and only because my daughter sends stuff on it. I am going to tell her to send me stuff via another method
If that doesn't work then it's a new ROM. I have performed ROM installs before but have never flashed a new kernel on a phone before so that will be a new experience. Hopefully I won't brick the phone
Click to expand...
Click to collapse
Hello,
Don't worry, it's really easy. Also, if you are lost, there must be a ton of tutorials in general section. If you are lost yet, just ask and someone will point you in the right direction...
Good luck...

lchiu7 said:
I have a N6 purchased Dec 2015 new from Amazon. The only mods, if you can call it that is, I have unlocked the boot loader. I am currently running N6F26Y sideloaded via ADB.
The phone was great when I first got it but now after about a day or so of usage it becomes slow and sluggish and unresponsive I have to restart it to use it. I have done a factory reset a couple of times which gets it back to normal for a week or so and then the problem recurs. Occasionally I will delete the cache which also helps. Snapchat is one of the worse apps - crashes the phone regularly and is a very slow app.
Also the camera can get very slow often taking seconds to take one photo.
I love the phone but it's becoming unusable now. The contrast between this and a new phone (I have purchased a Moto Z) is like night and day. The Moto Z runs instantly, has no lag and is a nice phone. But what I like about the N6 is the large screen which makes it great for videos etc.
Short of perhaps flashing some custom ROM is there anything I could be doing?
Click to expand...
Click to collapse
I've been running Pure Nexus and wanted to let peeps know I put Nitrogen on and man it's so smooth, my wifi tether is back and I went to sleep last night with 50% battery still. When I installed it I opted for the nano gapps I think so like 175mb for minimal apps and maybe that's why it's running so efficient. Maybe I could have re-installed Pure Nexus with a clean install and it would have gotten better but it was a good time to try something else. Also when Nitrogen got an update I was notified just like stock and it downloaded. I didn't even know these could do that. Anyways give it a try and you might just switch back. I was looking into new phones but if it keeps working so smooth with battery longer than a day then I'm fine for now.

Snap chat is not that big of an issue. What I have found to cause the device to slow down is normally almost full device storage and a crappy cache release code in apps. Some apps don't release their cache properly. So it causes lag. This is why a reboot seems to fix it.
While a custom rom may fix this issue it is not the solution. The proper solution is to find what is causing it and fix/repair/ditch it.
Worst offenders for crappy code in my thoughts. Other will disagree with one on this list I am sure. So don't bother. I know people swear by it. It runs like crap for me at times and causes my whole device to lag until I close it out.
1 Facebook
2 FB messenger
3 Google Chrome ( don't do it lol)
4 whatsapp
5 Hangouts
Mind you this is just a list on my usage. It may very per user and even device (considering different hardware)

zelendel said:
... It runs like crap for me at times and causes my whole device to lag until I close it out.
1 Facebook
2 FB messenger
3 Google Chrome ( don't do it lol)
4 whatsapp
5 Hangouts
...
Click to expand...
Click to collapse
I can confirm this, because I've removed these apps (-whatsapp) and also decrypted the data partition...
My N6 is fast.
Maybe a lite stock ROM and an other kernel is a good start.

NLBeev said:
I can confirm this, because I've removed these apps (-whatsapp) and also decrypted the data partition...
My N6 is fast.
Maybe a lite stock ROM and an other kernel is a good start.
Click to expand...
Click to collapse
Currently I have FB, FB messenger, and Chrome but when I installed gapps I chose a super lite install so tons of bloat and google apps were not installed and my battery has gone way up and it's so smooth. I'm sure even when we don't use apps they're always doing something in the background. I bet you're right and a stock lite ROM would be good too with the minimal bs apps.

zelendel said:
Snap chat is not that big of an issue. What I have found to cause the device to slow down is normally almost full device storage and a crappy cache release code in apps. Some apps don't release their cache properly. So it causes lag. This is why a reboot seems to fix it.
While a custom rom may fix this issue it is not the solution. The proper solution is to find what is causing it and fix/repair/ditch it.
Worst offenders for crappy code in my thoughts. Other will disagree with one on this list I am sure. So don't bother. I know people swear by it. It runs like crap for me at times and causes my whole device to lag until I close it out.
1 Facebook
2 FB messenger
3 Google Chrome ( don't do it lol)
4 whatsapp
5 Hangouts
Mind you this is just a list on my usage. It may very per user and even device (considering different hardware)
Click to expand...
Click to collapse
Thanks for the advice. Of the list of apps above I have only Chrome and Hangouts. I really can't see replacing either of them.
I also should have pointed out that the phone locks up randomly requiring a hard reset. I wonder if an errant app could cause that or I have some RAM problem. Certainly on a PC bad RAM can use in Windows a blue screen or something but perhaps Android isn't so forgiving?

lchiu7 said:
Thanks for the advice. Of the list of apps above I have only Chrome and Hangouts. I really can't see replacing either of them.
I also should have pointed out that the phone locks up randomly requiring a hard reset. I wonder if an errant app could cause that or I have some RAM problem. Certainly on a PC bad RAM can use in Windows a blue screen or something but perhaps Android isn't so forgiving?
Click to expand...
Click to collapse
I would flash TWRP, flash supersu in TWRP to root, make a complete backup in twrp, then remove whatever Google apps you're not using with a system app removal app. Getting some of that bloat off the device should help. If it's still laggy, then look into a custom ROM. I run Tesla on my Nexus 6 with none of the issues you're having. I don't decrypt it either

Running abdroid 7.1 here. I dont get any slowdowns, at leas until the battery doesnt drop below 50 and 25 percent.
Im running a custom kernel and my phone is rooted. Everything else is stock.

Can you flash a custom kernel and presumably TWRP without wiping the phone? If so then might try that before a custom ROM

lchiu7 said:
Can you flash a custom kernel and presumably TWRP without wiping the phone? If so then might try that before a custom ROM
Click to expand...
Click to collapse
Hello,
Since your bootloader is unlocked, flash TWRP and install the kernel, no problem.
Might give you a slight boost at first sight, but your device will likely slow down over time anyway...
Cheers...

I'm on 7.0 with the April SP. I have dozens of apps installed, including Hangouts. I use Firefox for browsing, I like it better than chrome (and you can install an ad blocker).
My camera slows down when the battery is under 40%, and the whole device slows dramatically, though not unusable, at or below 5%. But otherwise, no issues what so ever.
One solution that I have not seen suggested here is resetting the device and NOT taking the Google account backup of all your apps. I would suggest making a completely clean install of the factory rom you have and installing one or two apps at a time, most important to you first. And do this for a few days/weeks until you find the app that's misbehaving.
Although there are general bad players out there, this bad app could be unique to your device. Just because all devices of the same model have the same specs and components, doesn't mean that there isn't variability in parts quality.
I would do this before trying any new roms or kernels. Find the true problem first.
Good luck!
edit:
I had another idea: Go into your battery stats and network stats and storage stats and see if any app seems to be using too much of any, or all of the 3. This may get you the answer more quickly.