hi - encoding really slow

[Selur]

I upgraded to 2018.02.03.3 seem to break HDR patching.

Haven't changed anything inside the code related to that for ages, might be that there have been changes to NVEncC which breaks hdr patching,..
Since you do not share any details I won't look into it.
Assuming you wrap your output into an mp4 container, disaling XPS might help.

Please add HDR patching to Nvenc ffmpeg and more Preset instead of HQ only.

Have you tested that it actually works when using ffmpeg as encoder?

Cu Selur