Im ont the old rift cv1 on a 2070super i7 7700k pc. If you want good frames on your rift s I hope you have a better machine than mine cause after the wowness calms a bit the low frames kind of gets to me and I feel I need the best in the 3000 series and maybe a new cpu to get ok frames with ok settings. I dont know if the rift s is less demanding than cv1. I also wonder if the msfs is better optimized towards the wmr headsets, hp reverb g1, g2 and samsung oddessey+ because they can use the windows open xr app with its render slider that is within the app itself. If you are getting the rift s only for msfs i might reconsider.