I disabled SSW in VD and saw a small increase in switching to the VD OPenXR runtime, not quite 10% but around 5-8% increase in fps. The downside though is I experienced some horrible stuttering at times and had head tracking issues - like the tracking itself was lagging. I’ll need to troubleshoot this tomorrow when I next get a chance, but I didn’t see this when I initially made the switch but still had SSW enabled.