Here some tweaks to improve framerate.

[senseispcc]

Originally Posted by Fuchs

you have probably miss something during install dude!
i get stuttering so only a few moments an really less than before

The fps are a little higher but the micro stutter is the same or nearly so (there are no instruments to measure this objectively). Sorry; the only way to reduce them is to set the "building detail" to high or medium.