Whatever I do to the game, it makes no difference. Stock BZ2 and almost all other mods I have seen run very smoothly on the highest graphics settings, but with QF, it's a different story. I can lower all the graphics settings to their minimum if I want, the lag is still the most serious I have ever seen for this game. And besides, the settings don't seem to affect the QF vehicles and buildings anyway. They all look the same in any detail level.
Any idea of something else I can do to lower my lag?
and while I'm at it, does anybody have any pointers for Mission 13?