Apart from this though I've had a great experience with the game so far
I haven't personally noticed any framerate drops associated with clouds and dust, but every once and a while when there's an explosion or cloud of smoke that appears, I get a texture-less effect. I have tried to recreate the effect, but it has only happened maybe 2-3 times the entire time I've played, and when I try to recreate it, I can't. Perhaps our two issues are related.
Video of what happens.