Update 33164 Absolutely Ruins my FPS

Ever since the new patch my ingame FPS count has been utter crap. Not even above 50 half the time, and whenever i zoom out it drops to 40. Very jumpy as well. Before Update 33164, my game was running perfectly.

This screenshot shows a crappy 44FPS and what’s interesting is the game is not using much RAM??
I have a theory:
If game uses low RAM, game bad
If game uses high RAM, game good
When the game was using 4-6GB of RAM i had perfectly smooth frame counts. I’m intrigued to know what the heII the devs did with this one.