I've been getting some shocking fps with my two GTX 680's... it goes down to like 30 FPS in some early parts of the game. It feels really laggy.

Anyone else getting any problems?

And yes I have the latest drivers, version 314.07 which apparently boosts SLI up to 65%.

What are "lower" settings? I run Aniso=1, AA 2x or 0, everything high or medium, 670 SLI, fps around 60-120.