Do you have any FPS monitoring software on? (the game's internal one is okay) I had the same issue when running fpsVR, or even OpenXR toolkit with it's fps monitor. I am not running ASW tho.
Not too much in terms of raw FPS, but I noticed that that I could up my PD and other settings without losing any fps until I was GPU bound. The game is a bit more smooth tho.
https://gitlab.com/NobiWan/xrnecksafer This?
My FPS is up 10-20% according to the benchmark comparing to the 2.7.8. Also it's not only the benchmark, on multiplayer it seems that on the ground at least I can get like 30% more fps. Awesome work ED!