I have a VPN connection to a remote PC on which there is a shared folder. Which is handy since I can copy files across easily. I have been doing it through using explorer (i.e. CTRL-C, CTRL-V) but wanted to write a batch file...

like: xcopy /s /y c:\myfolder \\123.123.123.123\destination

It works fine but for some reason this version is much slower. Using explorer it copies maybe 1-2 files a second but the xcopy version is perhaps 2-3 times slower.
Is there any good reason for this, and any way to fix it?