Transferring from USB to NTFS hard drive is really slow

I have a second hard drive that I've installed on my system, and copying files from the USB to the hard drive is extremely slow (about 70kB/sec).

Here is my /etc/fstab entry:

/dev/sdb1 /media/Storage ntfs uid=rhys,gid=users,auto,user,exec,rw,sync 0 0

Am I doing something wrong here?

Actually, asyncronous copy shouldn't change the speed. It would look like that because the copy happens in background, but you won't be able to unmount the drive any sooner than before. At least with syncronous tranfer when it says "Done", it really is done... but the downside is that the pop-up "Copying" box will hang around for ages.

Seems as though switching the flag from sync to async fixes the issue.

/dev/sdb1 /media/Storage ntfs uid=rhys,gid=users,auto,user,exec,rw,async 0 0