Can you give an example of a copy that does that on your device. Are you accessing two different shares and copying across from two different Windows Explorers? I have seen this before but normally its because of the way the device is being accessed to copy/move folders.
Before I opened up 2 windows on the PC desktop,
\\Dlink-2b1fa4\bt\DL via PC and
\\Dlink-2b1fa4\Volume_1\movies and more\series . Dragging the file between windows would get another pop-up, Copying... . Files would just copy but take time
Think I see what you are getting. What I just did was create another directory
\\Dlink-2b1fa4\Volume_1\movies and more\new downloads. Again I opened up 2 windows this time
\\Dlink-2b1fa4\Volume_1\movies and more\series and
\\Dlink-2b1fa4\Volume_1\movies and more\new downloads and when I drag the file across, move (not copy now) is instant.
Thanks