iOS 6 on iPod Touch - Unuseable now?

[thedeejay]

I need some advice. I've seen people say they're running iOS 6 on iPod Touch 4 and it's running fine. I'm having issues and wondering what to do

1) Major lag, literally scrolling through music is lagging followed by crashing
2) Safari instantly crashes (odd because it never did before and now it is)
3) Any type of I messaging sucks because messages that come in are so slow and choppy I have to restart

I've done 2 clean restores and set up as new. What's going on??????