[Stereodude]

All CoreELEC support belongs over on the CoreELEC forum.

And by "support" you mean being told that I should use NFS instead of SMB on a Windows 10 box, or use other hardware, because apparently expecting the C2 and CoreELEC to be able to stream an ISO file at <50Mbit/sec on a gigabit network via SMB for smooth media playback is unrealistic.

How the C2 is a top recommended piece of hardware for Kodi is beyond me.  It is clearly deficient at basic multimedia tasks, or the recommended HW thread needs to specify what Kodi including Linux distro is the one that works.  LibreELEC 8.2.5 performs worse than CoreELEC with the same playback task.  It has similar pausing and buffering plus an intermittent stuttering slideshow like playback effect where it only displays a few frames per second.