but thats not exact enough, e.g. what is “unflyable” for you ? What is “before” <-> “after” fps in VR ?
The “problem” is then in your case is only in VR ( Quest 2 ) ? If so, then the topic heading should be point to that, then possible more quest 2 owners look into the topic.
Have you tried allready to reduce the in-game settings ? Are all drivers up2date and did you reset manuall settings to default ? Is all fine with the VR software ?
You need to give the community some “hints” that users get an possible idea about a) your issues and b) possible reasons 