My N7/16GB has been experiencing all these lag/sluggishness issues for months, and I've tried everything I could find — trimming disk space, disabling Currents, even factory-resetting and starting fresh. Just got 4.2.2 a few days ago and it's still slow as can be.

One of the comments earlier in the thread suggested calling Asus to ask for a replacement, and I just emailed them via this form:

[ http :// www [dot] service [dot] asus [dot] com/#!Tech Support Mailbox/c1l8j ]

Will post again with how it goes. Will ring them if I don't get an email response.

Originally Posted by Cor-master

I think I figured out the best fix for now until google every gets off their lazy asses and gives us 4.2.2, turn the tablet off before you charge. Seems to me if you leave it on the lag will get worse and worse until I feels like your using a nook color with jelly bean on it! Memory leak I suppose. But a reboot will fix it.

Hell I dunno probably taking a stab in the dark, every lag fix I try only works momentarily and then the lag comes back. It's not lagging now, give it an hour, it probably will be again!

Sent from my Nexus 7 using Tapatalk HD

Every device lags, every damned device lags, so don't believe the hype, especially from Apple - they're the big dog on the block and they love preaching how smooth and fluid their interface and mobile OS is, which lags like molasses in winter when you try and scroll left to the Search screen, every time, on every device they've ever made, without fail.

All I'll say is this: when I got this Nexus 7 a little over a week ago it had the factory 4.1 on it, then I updated to 4.2.1 and wasn't really that impressed because it suffered from lag that was more than noticeable to me (having used portable devices and mobile OSes for over 20 years, I notice it instantly on any device always). I got rid of the pure stock ROM and tried the CM 10.1 and it was noticeably better as expected, but still some lag, so then I started looking at custom kernels.

franco.Kernel helped out significantly, and then M-Kernel did as well but the lag was still there for the most part exactly in the same places (scrolling primarily) and opening certain apps.

Then 4.2.2 update patch came out and I had it within maybe an hour of the N7 Wi-Fi ROM appearing and installed it and the very first thing I noticed was it booted the N7 like 5x faster - on 4.2.1 it would take about 15 seconds or so to see the Google logo appear, with 4.2.2 that happens in 3 seconds now. The full boot on 4.2.1 took roughly 45-50 seconds, now it takes 27-30 consistently.

Everything is better with 4.2.2, including battery life (that means the pure stock ROM/kernel) because of improvements Google now has in effect - they even updated the product specs to say 10 hours of active use instead of the previous 8 hours so they're confident enough in this new 4.2.2 version to do that publicly with the product specs.

4.2.2 is better, period. It brings back almost all the "butter" as far as I'm concerned, but right now I'm using Paranoid Android 3.0 and M-Kernel a37 and getting fantastic battery life as well as snappy fast responsive performance - and that's just from using two cores which is the default with M-Kernel these days. If I bump it to all 4 things just get even more buttery (if that's even a word, geez).

I'm happy with this device, I can't comprehend why some people aren't, really. And no it's not just because of what I paid for it - it's because I've used most every mobile or handheld device in the past 20 years and this one is plain and simple awesome.

Originally Posted by ebcase

Just got 4.2.2 a few days ago and it's still slow as can be.

Also, the only way someone can say something is slow is if they have something to compare it with - if all you'd ever seen or used in your life was that Nexus 7, you'd most likely think it was working just fine, but apparently something you've used or seen in action gives you a baseline to say "Wow, that's fast, my Nexus 7 can't do things that fast, it's not that smooth and snappy..." so, I ask you: what exactly are you comparing your Nexus 7's performance with, are you using benchmarks with actual numbers or are you simply staring at it when you open something and say "That's slow..." ?

It's entirely possible your Nexus 7 truly is defective in some respect(s), I can't say for sure, but I'd be interested in seeing something in terms of concrete numbers - and I don't mean Quadrant which is utter BS for "benchmark." Use something like Antutu for overall performance, Vellamo for HTML/browsing testing, and AndroBench for storage benching and then post some results for comparison.

Re: the LAG thread --__--

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I got the 3G model in January and its fine.. Not laggin all other place. Running PA 3.0 and the one and only motely kernel. As the post above me suggests you may truly have a defective unit.

Sent from my Nexus 7 using xda premium

For me it's smooth as it could be, I have a Galaxy S2 also, most of the time my Nexus 7 is faster than S2 (obviously) but it gets really sluggish when I set a live wallpaper for Nexus 7..I don't know why and there's nothing to cause this, Google Currents background synchronization is deactivated, I got no widgets and only e-mail synchronization is running all the time that's all..When I set the same wallpaper for my S2, it handles perfectly but I guess that's because of the screen resolution I don't know but still it's weird. In fact, I used to have an LG Optimus Black (P970) and strangely even it was handling those live wallpapers better..But other than that, I got no problems with my Nexus 7 so far.

Originally Posted by _Toprak_

For me it's smooth as it could be, I have a Galaxy S2 also, most of the time my Nexus 7 is faster than S2 (obviously) but it gets really sluggish when I set a live wallpaper for Nexus 7..I don't know why and there's nothing to cause this, Google Currents background synchronization is deactivated, I got no widgets and only e-mail synchronization is running all the time that's all..When I set the same wallpaper for my S2, it handles perfectly but I guess that's because of the screen resolution I don't know but still it's weird. In fact, I used to have an LG Optimus Black (P970) and strangely even it was handling those live wallpapers better..But other than that, I got no problems with my Nexus 7 so far.

certain live wallpaper just don't take advantage of the GPU on tablets..try the Xperia live wallpaper...it's smooth no matter what.