I have a couple of directories with a couple of hundred very large files.
It takes 20-40 seconds to do a 'page down' in the windows explorer window.
What can I do to tune this?

It's a SLES 10 SP2 with OES SP1, CIFS enabled, and running on a VMWare.

The storage was previously on a windows workstation, and that was faster than it is now.