Is anybody having an issue with frame loss using Windows mixed reality headsets in projects that don't lose frames on a vive or rift?

I have the same problem.

It works in 90FPS in Vive, but falls to 45-60FPS in WindowsMR

A bottleneck is RenderThread?
The total of GPU is seen in 9ms

From little processing omissions with something as trigger
“interleaved reprojection”
But, it operates, and is it the feeling that RenderThread is blocked?

By the way, 90FPS appears in the MR in the extremely light scene.