Here some tweaks to improve framerate.

[Schelle]

wow very nice job man
my fps jumped from 5 to 20 and no stutter
(over water with 12 aircraft)

but there's one problem
i see no muzzleflashes from guns and no fire
although i see the bullet casing falling out of the wing when firing

im running a 8600GT and had to change render settings to D3D9 manually in the conf-file otherwise they game refuses to start

any1 know how to fix that?
this done and i am happy so far