Massive FPS drop because of SU9

Windows High Precision Event Timer. There are boatloads of articles and videos that suggest many (but certainly not all) people have seen fps increases and studdering decreases when you turn off this windows feature using either Device Manager or a command line code. Google it and you will see the articles explaining what it is and also the various results. It’s not a foolproof thing and like many of these tweaks it may or may not help your particular use case. I just wish Asobo would say something publicly about this more than “investigating” after so many posts and more than a few weeks of this particular bug.