Not sure if it's because of this, but I'm experiencing some significant frame drops (I used to get 230+, now I'm seeing anywhere from 120-180). It fluctuates pretty often too, making it quite the erratic experience.
Also, I believe my HUD's broken on the initial load. I'm seeing two chat boxes and my crosshair changes colors for some reason (I believe it's stuck on the hit color for RL only?). Restarting the game seems to have fixed it, but not the frame drops.
It's possible it might not be the update since I can't AB test it or anything, but I haven't had this problem until today. Let me know if you need more info, thanks.
edit: Worth mentioning that multiple others are reporting this from playing, so likely linked to the update.