I believe that would be the correct term for it. anyways, I'm playing the single player at the moment and the mission that I am on is the one I got from the Sgt Marshall from the Resistance, I have to go to the Dead City and find Lost Research Data. Anywho, i managed to locate the Lost research data and walk away with it. but a bit further, Near the shanty town part of the level, I'm experiencing some heavy lag, As in, everything is in slow motion and it's a bit choppy. One point, I was for sure my game was about to freeze on me. I've tried googling it, but I can't seem to find anyone else who is experiencing this. I re-loaded my game, reset my PS3, and even made some hdd space (and I had a lot of hdd space before I cleared off any game data) and yet no luck, I load up my game to have it slow down on me. I'm just curious if anyone else is experiencing this, I'm hoping it's just this part of the game, and this is the 2nd time visiting the Dead City and the first time visit, I went without any problems.

Anyways, i'm really enjoying this game and hope there is a method or a patch to fix this problem.

Same here mate...
My friend played this game too, he had no problems at dead city.
He plays on a PS3 slim
I play on a fat PS3
whta is your PS3 version?

greetz