Performance Issue about alphafs

[Yomodo]

Yes, using CopyOptions.Restartable can slow down the copy progress, at stated by Microsoft:

COPY_FILE_RESTARTABLE 0x00000002
Progress of the copy is tracked in the target file in case the copy fails. The failed copy can be restarted at a later time by specifying the same values for lpExistingFileName and lpNewFileName as those used in the call that failed. This can significantly slow down the copy operation as the new file may be flushed multiple times during the copy operation.

[alex6dj]

Yes I'm aware of that, but is strange that a copy of the same file to a common disk runs at 80 MB/s from another local disk disk but at only 4 MB/s from a remote folder share (1 GB/s network).

Is any other way I can start a copy, pause it and restart from the last point. This is the thing I'm planning to use.