I have an EVGA RTX 2080 atm, and I used the following site (see link) to try and teak everything (dunno if someones already posted this, so just in case):
How To Preflight G2 / G2 VR – Startup in DCS
the guide is speciafically to `try` and get the best from your rig for the G2, pretty detailed, lots of steps, don't let that put you off very easy (follow the instructions, tweak win 10 etc.), on my EVGA RTX 2080 (black non super edition, so nothing special), I can get decent frames, key is tweaking the steam VR super sampling stuff mainly imo; but with a 3080 or better (I'm currnelty hoping for a 3090 or a 3080 Ti to materialize tbh ;P) you should get faily smooth play and tracking if you have decent lighting.