I think you’re being over-optimistic about that card’s abilities. Graphics have already been adjusted for lower end rigs and many weren’t happy about that.
Just for your info - when I started flying this sim in VR (as soon as it was implemented) I ran it at a fixed framerate of 18fps. I was gobsmacked at just how well that worked. Now I can run it without any framerate locking and it runs nice and smooth at 30 or 45 fps, depending on situation, aircraft model and headset used.
You also need to be realistic with your settings and not expect too much - I’m also amazed at how good it looks at low to medium graphics settings. I use the default setting (just click on the button for it) and then increase the rendering to 100. Works great - flying at >3,000ft over UK, Crete and Nigeria (my main flying areas). You also need to bear in mind just how much the sim has, for your hardware to deal with.
I also found that extra RAM = smoother VR, even if the sim doesn’t use it. Doubling my 16GB to 32GB instantly got rid of the stutters I was seeing when doing test flights in Alaska. Even though the sim has never used more than 8GB on my PC.
Remember that VR was not a consideration for this sim initially on announcement (when much of the code was likely already well advanced), so the basics were already there for 2D ‘pancake’ simming and the VR was shoehorned in later after outcry from users.
edit: I have an RTX 2080Ti