I have done this and it has made my game run smoothly!

Go to Nvidia Control Panel

Program Settings, Select iw6mp64_ship.exe

FXAA - OFF
AA Gamma Correction - OFF
Max Pre-Rendered Frames - 1
Multi Display - Single Display Performance Mode
Power Management - Prefer Max Performance
Threaded Optimization - ON
Vertical Sync - ON

Hope it works for you like it did for me! Cheers!