Did you make sure that motion reprojection in OXRTK is disabled too because your frame rate is very close to 30 FPS which is what motion reprojection could be targeting? Make sure it is set to default and also go into and out VR a couple of times because sometimes the change doesn’t stick until the second go.
Also, check with Windows task manager performance view that your CPU is running at the correct speed. Here’s what mine looks like while in a VR flight in MSFS and you can see that my CPU is running at over 4GHz. If yours isn’t, check whether there is a newer BIOS for your motherboard that you should install.
