I thought the same thing when I first upgraded my 3G. "Hmm, performance seems similar to 3.1.3, wonder what people were talking about". Then apps started crash

I thought the same thing when I first upgraded my 3G. "Hmm, performance seems similar to 3.1.3, wonder what people were talking about". Then apps started crashing on a daily basis: -Camera sometimes would take a LONG time to boot up -Phone somehow corrupted recent calls -Would sometimes need to open an app 2-3 times for it to finally work -Even unlocking the screen sometimes would lag while I tried swiping 1,2,5,7 times on the screen, thinking it didn't register. I tried downgrading, but the different guides didn't help me (kept getting different iTunes errors even with using iReb). Guess I may be stuck or have to restore every few weeks or so to get it to work well :-|