I've had it with 6.0. I hate just how buggy it is. I've started a couple threads before on how scrolling animations will get really laggy/jerky out of nowhere, but have gotten no answers. 4 months later and I'm still having the exact same issues! It doesn't matter what apps I have installed, what temperature the phone is, how good/bad my signal is, etc. I've had this issue on 3 (THREE) separate devices.
The ONLY THING that seems to help is time. The longer I leave the phone on (like 4-5 days), the better chance I have of the graphics finally smoothing out. Before the last time I restarted the phone, I kept it on for 35 days straight because I finally got the graphics to smooth out once and for all. Unfortunately, I had to restart the device after those 35 days because I was having some issues with WIFI. So once it got restarted, the WIFI was fixed, but the graphics are now getting laggy/jerky again! I suppose I can wait another few days for it to smooth out, but on a device that I paid $500 for, I shouldn't have to! Simple little games run like garbage, scrolling a web page gets "bouncy" (if that makes any sense). I get similar behavior with YouTube, any email app, Quick pic gallery, and even the home screen! The phone acts like it's throttling the processor for no reason.
Does anyone have any answers? Just to let you know, factory resetting/re-flashing the firmware DOES NOT WORK! I've tried that multiple times. I would upload a YouTube video using a screen recorder, but the app doesn't seem to really record my screen at 60fps like it should. On top of that, the YouTube player seems to add way more frame dropping than usual, so it's not a true and accurate representation of what I'm seeing.