A small developer team and I had worked on this for a while for personal reasons, so I have decided to port it to cpp and release it to the general public. The stats are in the github. I promise if you have a gpu this will improve your speeds by at least 50%, even if you believe your configuration is optimized.
Does it have Intel Arc support?
Somewhat, but most of the optimizations are cuda based.
I would guess it would be a little faster, like 20-40%, but not 200% like on Nvidia.