[Baron]

Originally Posted by 69iAF~Mike

The beta versions were bad for me.
This version shows a lower framerate (15 to 30 as opposed to 15-60 in the betas, no vsync) but better overall smoothness. Much less stuttering (almost none) and mostly over London, but playable. I can finally play the campaigns on medium-high settings!
Previously I couldn't fly under 300 meters because the framerate would drop under 10FPS (it "kicked in" exactly under a certain altitude). Now there's nearly no drop no matter how low I fly.

Right now I can only think of better hardware as a means to increase performance.

Try turning grass off.