Here some tweaks to improve framerate.

Originally Posted by Bakelit

Thank you Rocka, defragging cache is a very helpful tip.

Got a modest improvement (my NV 330 is not a strong GPU) but went from 18 to 27 in BF 109 cockpit view over the channel. Which is from unplayable to playable.

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...