I upgraded from 8.4 to 9.2 recently and have noticed a slight, but significant bit of lag and choppiness when scrolling through large lists or switching between apps. Particularly in the Music app, scrolling through my list of artists creates a bit of choppiness instead of scrolling smooth as butter like it did on 8.4 I'm regretting the upgrade, but nothing I can do about it now. I even restored my phone back to factory settings to see if a clean install would help. Not much better. Anyone else experiencing this or know how to improve performance on 9.2? Thanks!