Hi @haukka81. I run with these DCS settings and am happy with them:
To get to 45 fps (I turn reprojection off in SteamVR, keep the Video override to 100% and just use PD 1.5 from within DCS) you also have to use the VR Mod here: DCS VR Shaders Mod (now with instructions!)
My i5 is overclocked to 4.5GHz as well. If I had a better GPU I’d push up some MSAA x2 but these keep the 1070 pretty toasty in VR.