Here some tweaks to improve framerate.

[Rocka]

Originally Posted by Tvrdi

I just installed nvidia beta drivers 270.51 and did defrag of game cache files and my average fps went up by 10...but....game is still not smooth at all and stutters badly....I was thinking...whats about sound options...only basic options there...

Using the same drivers too.

Not much to do about the sound atm I guess, except turning the (very annoying) voices off I guess

Biggest fps killer for my rig atm is the shadows option (not the land shading though).
Hate to turn it off casue the game is so pretty with shadows enabled, but atm I loose about 20-25 fps and the stuttering becomes very annoying.