Wow, made pretty much the same discoveries today trying to back up 1.75TB of photo data from my NAS across MacOS Sonoma to a SSD via the finder. Ended up doing exactly the same thing as this article concludes, booted up Windows11 PC and got the whole thing done at a consistently faster transfer rate. Sigh.
Yes, because Apple used to have AFP, a filesharing protocol that was magnitudes better and faster than SMB and they had zero interest in having a decent SMB implementation because it was the competition after all. They eventually decided to discontinue AFP and left everyone with the mess their SMB implementation is. To make things worse they never cared to implement NFS shared on their UI.
Meh. AFP copies were just as slow.
Any solutions?
Maybe use a docker container?
A docker container to access network shares? Please elaborate
Exactly that. Run a docker container (probably privileged) that has your local volume mounted. Inside that docker container install
cifs-utils
and then connect to the SMB server from there via CLI.