Nvidia Driver 465.89 killed my framerate

I found that in my case it didn’t matter, so long as the module was enable my FPS took a massive hit. Try toggling it off, look at the ugly default WOW bars for a bit and see if you get an FPS increase. If so, look at KUI, it’s very light on the CPU usage by comparison. If you look at my post there (it’s pretty detailed but they never replied to me), I found it didn’t matter at all if I disabled every style and all sorts of stuff. Just having the module on killed my FPS.