Even though your CPU is dated and has a high GHz, it will need to be upgraded in order to play the game at a good frame rate. Though my GHz is lower than yours (2.8), I can easily get 60 FPS. Have you updated to the GeForce 331.93 driver? That driver is not current. The 331.82 driver showed MASSIVE improvements on frame rates, and I made a thread about it 2 weeks ago. Even though the current 331.93 driver is a Beta driver, it's still good to download and use. Try it out! Plus the recent two driver updates I mention have also boosted the graphics somewhat; Aetherytes now have a blue glow to them, and Ambient Occulsion looks a lot better, too. I have a GeForce 555M GT, though, but my game runs great.