This is a great game but i noticed some odd lines in the first jet ski level on the upper area of the screen,looked like screen tearing,it was present for a second or two then moved up then vanished.Anyone else have these lins?
It's simply a case of either having screen tearing, or having the game slow down, as I don't believe the engine used to create this game was fully optimised. As a choice of one or the other, I'd prefer screen tearing to the game slowing down to a crawl, as slowdown is much more jarring and detrimental to the gameplay.
I'm sure if Naughty Dog create another game using this engine it will be more highly optimised and won't exhibit as much screen tearing as this game. Meaning it's not the PS3's fault, just a couple of flaws in the game engine that need ironing out in the future. Hope this helps. :)