was waiting for quest pro posts to pop up, because i have also one, and most guides are quest 2... I do have some weird settings now that work for me (so it is not recommendation, just sharing): Oculus app set at 72Hz, with resolution slider all the way left (!) at 0.8, then I use Oculus Tray tool and have set up a profile for DCS with Super Sampling 2.35 (may go to 2.25), which gives me a 0.8*2.25 = 1.8. ASW Mode 45Hz, Adaptive GPU ON, CPU Priority High. Oculus Tray Tool Quest Link Settings Distortion Curvature LOW, Encode Resolution 3664, Encode Bitrate 350, Sharpening Enabled. OTT Game Settings (this one is not in the game profiles) OVR Server Priority REALTIME. In the OTT Profiles main page also Desktop Resolution 800x600.
In-game DCS settings textures all high, visibility high, clouds ultra, water medium, shadows high, terrain shadows flat only, MSAA 2x (that bothers me the most...), but trees, grass/clutter, all the way up, even civilian traffic on (medium i think, i like a little movement on the ground), preload radius 100, global cockpit illumination OFF, Anisotropic Filtering 16x.
Also Rebar enabled in BIOS and in NVIDIA Profile Inspector, although i haven't noticed any difference. Big game changer for me was disabling Hyperthreading and Intel Adaptive Thermal Boost (Intel Boost and Intel Boost Technology 3.0 enabled).
I have now a very smooth experience in Caucasus, and even with a Helicopter like KA-50 or the Huey flying over city-scapes in Syria works at those high settings. A fly-over with F18 over Mariana's gives heavy stutters, but I think here I will go down with textures and turn off shadows for game-play.
As mentioned, my gripe is that I can't get smooth experience with MSAA 4x, as it does look considerably better.
Ah, in game OpenVR Toolkit: NIS enabled but at 100%, Turbo ON/OFF depending on situation.