Which graphic option controls smoke?

[Atomic Abbey]

Loving this game and how good it looks, I can run this game on "high" settings with a relatively good FPS. However after a few minutes and tanks are exploding and bombs are going off, there tends to be lots of heavy smoke effects, which will put a strain on my FPS

Coud someone tell me real quick which graphic option can lower the effects of smoke without turning anthing else down? I'd like to keep everything else looking good

[(OG) Al Capone]

Nothing Sorry man.......

[Thirsty]

this guide explains all the setting options well,so u might find it in there

http://steamcommunity.com/app/236390/guides/?browsesort=toprated&browsefilter=toprated&requiredtags%5B0%5D=english&p=1#scrollTop=0