Nope. This is a problem everyone is having. Obviously they coded in the smoke effects without much regard for your fps.

Anyone who runs up to the smoke as close as possible will see fps go straight to hell.

The only way to stop these slow downs is to lower the "Effects Detail" setting in Advanced. I have to put it all the way down to Low in order to stop the framerate from turning into shit.

All it does anyway is changes how much "smoke lag" is enumerated..

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American...I like American. Steamboat Willy, toot-toot.

Nooo! Please! I like American! Fancy Shmancy. What a cinch. Go fly a kite. Cat got your tongue? Colored beans! Betty boop, what a dish. Betty Grable, nice gams.

I say can you see? I say can you see? I....I say...

Fuck hitler. FUCK HITLER!

Shut up with that filthy pig latin!