first get a 3D card. That in it self will improve things. Second try and use the tweaks found in the thread above. Third got to this thread.
http://www.simviation.com/cgi-bin/yabb/ ... 1048521191that is most likely one of the best threads on getting your computer to run at peak performace in general that I have seen. One final thing. Make sure you have a power supply that can run everything. I went from a 250 watt to a 450 watt and it helped in performance for me
Like you I was a bit upset with CFS3. It still has its problem but it is much better now than when I fisrt bought it