I use an Optane drive for boot/pagefile and for my VR simulators (two drives) for exactly this reason. It doesn't help peak FPS, but it has a noticeable effect

I use an Optane drive for boot/pagefile and for my VR simulators (two drives) for exactly this reason. It doesn't help peak FPS, but it has a noticeable effect on the 1% and 0.1% cases, to the point where I notice it and can tune around the difference. This is a 905p vs SK Hynix Platinum for reference.