I finished installing PF+AEP. I get 11 fps at 800x600 and 8fps at 1024x760 with minimal graphics settings. I have 756 ram and an fx5700 ultra nvidia 128 meg card. I use track IR and a nostromo pad with up to date drivers on everything. I don't have a super great machine but come on, it is above minimum specs.
All I can think of is to run a virus scan and defrag. I was going to modify the conf ini file but on minimal settings it isn't running well.

TX-Kingsnake