Windows File Explorer does a lot of extra work to get a sense of file sizes and other metadata to try to keep the UI looking fresh/interesting/useful to someone watching the job in real time.
If you need to seriously move/copy lots of files or lots of data in Windows it is generally a good idea to use shell commands. Robocopy [1], especially, is one of the strongest tools you can learn on Windows. (It gets very close to being Windows' native rsync.)
If you need to seriously move/copy lots of files or lots of data in Windows it is generally a good idea to use shell commands. Robocopy [1], especially, is one of the strongest tools you can learn on Windows. (It gets very close to being Windows' native rsync.)
[1] https://learn.microsoft.com/en-us/windows-server/administrat...