Not yet. We are working on this, but progress is a bit slow due to GDC preparations. I’m not sure if it will make it into 4.12. Might not be ready until 4.13.
Update: Please try the latest code in the Github Master branch and see if that improves things. There have been a number of performance improvements. In particular, on Windows I eliminated one buffer copy, and the pixel conversion happens on the GPU now,