Hi, did you check the video link I posted here? With your comp specs, you shouldn't have to worry about fps in DCS.
For me, fps was never really the biggest problem. On my system, DCS defaulted to run on only one physical core (exactly like in YouTube-clip), choking it out in the process. That alone caused various problems with the game like crashing it before reaching main menu, crashing it almost always after existing mission, general stuttering, sounds chopping in and out while flying and jerky TrackIR.
I never figured out why DCS.exe was defaulting to only one physical core on my i7-6850K. I'm just happy that I found the fix.