By default, SuSE 10.0 mounts USB disks with the 'sync' paramater. This is the safest way to do it, but reduces transfer speed by at least 10 times.

Here is a way to change the default behaviour:


Now when USB devices are mounted, they'll be mounted asynchronously.
You must be careful to properly unmount the disk before unplugging it!

Source: http://opensourcetutorials.blogspot.com/2007/03/my-experience-installing-and-using.html
Thanks!