Lighting changes and random smoke - minus 200 fps

I didnt see anything in the patch notes about lighting changes. Anyone else notice they added a grey haze to all maps? Its extremely noticeable even in the practice range. Well they also changed the lighting itself in some way, and added massive smoke plumes with lots of particles on the c point in hanumura for some reason and that brings me down from 550 fps to worse than rifals performance with more than a 200fps loss.

First of all, the maps are already gorgeous why are we tainting that with fog on all maps i’ve played so far. Second of all, if fog is wanted to make like a stage-like effects for the Le Sarifim event, can we have an option to turn it off for those who dont want a massive perfomance loss?