Everytime I accidently shoot at the ground with the F-15 cannon my computer nearly locks up and I have about 0.1 fps.

I have everything on low and it runs with 50-60 fps.
Is there a mod or solution for that? I already have the smoke shader mod activated, but it doesnt help much with the explosion.

Interesting... if you haven't done so already, try reducing your DirectX sound acceleration and turning off forcefeedback (set it to 'false') in the producer.cfg file (I hope that's what it's called, not sure anymore).

Rgr that I will try that. Thanks

i actually deleted some shader files and the smoke is much lighter now

remove/rename these 2 files:
\Lock On\Bazar\Effects\PFX\low or medium or high
simpleground.pfx
simpleground1.pfx
smokepuff.pfx

Get the FPS tweak from lockon files, it'll sort most of those problems.

I have several fps tweaks, but as I said the smoke is not the problem, the explosions are.
I will try the fix with the pfx files though, thanks.

And maybe lockonfiles has some more mods for that

i had the same problem.
in lockon files web site theres 2 diferent explosion fixes.
of the two,
Greb's Explosion Pack fixed my problem.