With that hardware you can easily go to 100% ingame render resolution and oxr 100% resolution for about 35fps with a little tweaking of medium settings. Just go a little up where you like it, go down with things you dont need urgently (maybe post effects as light shafts and so on). I got smooth 25fps-27fps with my poor 2080ti with 100/100/medium/452.06.
100% ingame resolution with TAA gives me the best result. You can improve your experience with the G2 by blinding the tracking cams (by the loss off lean forward/backward). The gyro in the G2 only tracks up/down and left/right movement. If you feel uncomfortable with that loss (as I do) try to stabilze the tracking of the headset with a cheap white led strip laid in U-form around yourself. The tracking of the G2 is really not good at all with uniform lightig. The LEDs helps to hold tracking much better and prevents jitter and position jumps in the cockpit here. But the most stable image is given with cams blinded.