Reddit user who got 1080 reports: "I can run DCS with high settings now. The camera is always wrong when I get in a plane, I use the view reset key RShift-Num5 to sort it out."
"I just found the framerate display in the game and no matter what settings you have it on the framerate fluctuates wildly, from 33-90, you can be looking forward at 90fps, look out of side window and it plummets to 33 or 45 - I couldn't discern a pattern. Both my CPU and GPU weren't breaking a sweat, running at about 35%, the framebuffer was maybe about 2GB.
I don't know if there are known issues with the engine for DCS, but it seems very odd to me."
https://www.reddit.com/r/oculus/comments/4lfzt4/just_got_my_gtx_1080_in_the_uk/