A quick DCS CapFrameX VR comparison as was curious.
The only truly statistically relevant lines are the v466.47 vs today’s v471.11 comparison, as they use the same windows and DCS versions.
This is just a no-inputs Caucasus Hornet Instant Action / Free Flight 60 second VR sample with an i9/2080/32GB, with nothing else but the driver version changed. Shaders deleted before each run and these samples are from each 2nd warmed up run.
Looks like Nvidia carrying on the tradition of their drivers getting slower over time for anything but the latest hardware - 2080 is getting obsoleted maybe? It could also be Windows updates over this time (I’m on 21H1, 19043.1081 as of today) plus of course DCS adding things. The average FPS is sort of not a great metric, as the 95% percentile is better for VR whoopsies.
Still, from this quick look, a driver like v466.11 is probably fastest on a 2080 for both DCS and MSFS, it’s just then you lose the DLSS etc toys on other games. If you just play sims though it might pay to just say on it or roll back… Hmm.