Hi PekelaarSFX,
I've picked up some tips by browsing through the forums and here's what I've changed in setup.ini. Make sure to make a backup of your setup file. I also did these same changes to my buildsetup.ini (I made backups of both files first.)
Under [GAMERUN] change these to the values listed below. This has increased my performance the most.
newblossershaders=0
postprocessing=0
Under [GAMEMAKE] change these to the values listed below. This is really up to you, but my still lightmaps look pretty good even with these settings.
lightmapatten=32
lightmaptexsize=256
lightmapquality=16
Not sure if the newblossershaders one makes any difference, I haven't noticed any difference, but why keep something on if you don't need it, right? Remember, these only work if you
don't care to use any posteffects. I noticed a 15+ frames per second increase in every tested level. It almost doubled my framerate in most cases.
Note: You'll sometimes have to make these changes to your built games, it just depends on if FPSC reverts the settings or not. I've always saved the settings with FPSC closed, but it still reverts the newblossershaders and postprocessing sometimes.
Hope that helps!