I'm a new developer on XCP-ng, I'll work on the Xen side to improve performance.
I'm a newly graduated of University of Versailles Saint-Quentin with a specialty in parallel computing and HPC, I have a big interest in operating systems.
Exactly as @tony said, the option
--delete-dom0 just remove the option from the booting command line given to dom0, if you need to remove a device you just need to remove it from the command when calling
--set-dom0. I'll take a look at the doc, you can modify it too, we are always open to contribution .
What I have seen from Microsoft forums would seem to indicate that Windows 10 only support up to 2 sockets and 256 cores.