I was just checking to see if anybody else was having trouble. The new patch was working much better until I downloaded the firmware update. Now it's worse than ever. I'm playing on a Slim 250 if that makes any difference. I managed to play without an actual "freeze" but the lagging and hitching are nearly as bad as Fallout 3 GOTY. I don't see how, but if it's something I could fix myself, I'm open to suggestions. It's become nearly unplayable.

That's nice. There's a typo in my username and I can't see how to change it. I'll make a new account if no one replies.