The game does require some optimization but…
That GPU and VR headset combination. Does that work well for you in any other title?
My 1080ti struggled to push a Valve Index to truly playable frame rates in IL-2 and was a horribly unplayable experience with MSFS2020.
I have since upgraded to a 3090 and IL-2 is butter smooth and fast. MSFS2020 is “workable” and a lot better than the 1080ti could push but it still has some way to go before I happily reach for the VR rather than my monitors.