I then just have a different experience then you I guess. I made 100s of videos using 30/60 fps and no one complains about poor image quality. Maybe you really have that sharp vision, I will not argue with that, there are people that can hear perfect pitches in tones. But there always is only one downside and thtat would be artifacts. So let the thread opener just try it for himself and then he can make his decision to use it or not. And regarding input lag - 80 fps with frame generation has the same input lag then 40 fps without. Input lag only increases if your GPU actually caps your fps by not be able to provide 100% frame generation. And when you have such a potent system, you really dont need frame generation I guess. And I still think, that msfs indeed has not the same fast camera movements than any 3d action game.
Kind Regards