I also had a massive performance drop after updating. The reason, at least in my case, was that the settings in OpenXR toolkit (CTRL+F2 while in game) were back to default after DCS last update.
I reset them and I am back to usual performance. Hope it can help any of you
Looks like I found a way. Hope it may help others.
- DO NOT start WMR
- Start DCS MT BETA, let it open WMR for you
- Once in DCS with VR working, start XRNECKSAFER
It works for me, now I won't break my neck checking who is gona kick my ass.