Andy, i also have a 3080 card and 16 gig. My processor is an amd but i was also struggling for best quality.
I came across a tip on a site for flightsims and tried it. Now i have all things on high and have no frame troubles.
I tried 60 hz on my G2 reverb but went crazy when watching menus, everything was flickering like crazy..
But there i came across this site where i had to enter this line in steamvr so it was rendered in 45 hz.
Strange thing is that now there is no flickering like in 60 hz in wmr settings.
I am no computer specialist so i have no clue what difference this makes but i’ll post the link so you can try yourself..
https://forums.frontier.co.uk/threads/hp-reverb-g2-impressions-in-elite-dangerous.558854/
on the first page there is a tip to enter a line in steamvr, then it will render in 45 hz.
I tried it and i felt good, no flickering.
On the latest tracks like Lemans it is better than for instance Brianza.
I also tried Dirt Rally 2.0 and there it works too, i can really put all eyecandy on.
Gr Menno