I have noticed that my FPS and general performance drops significantly whenever I am involved in fire fight. As soon as my group runs in to a group of other players and decides to engage, everyone’s frame rate goes to shit during the entire ordeal, I hope this gets some attention because it is very frustrating.
Is anyone else experiencing this? This happens even if my graphical settings are set to minimum. 
I’m having the same issue. regardless of game resolution I’m getting about 20-35 FPS when in low-population areas and small engagements work really smoothly SOMETIMES, but any firefight involving more than 2 people and I get dropped to 5-10 FPS… I’m playing with every lowest possible setting
Radeon HD6870
Phenom 495 quad core @3.0ghz
4gig ram
Any insight would be grand.
This happened to me a couple of time before (rarely).
And I am using a R9 280X playing ~50-60fps all maxed (shadows removed tho)
It’s wierd.