The overall optimization is pretty rough currently, I know it's only beta and all but I've played other betas and alphas in that past that aren't this rough so close to release.
-- With all that the game runs at 50-65 ish with mild action happening and with heavy action it drops to 42-49 --
And that's with the settings on low-medium
Also a MAJOR issue is smoke grenades, running through them the game drops to an amazing 20fps and just completely craps itself.
Thanks for your time!