tune up printing server

[Leonard Poon]

How should I tune up the WinXP Prof workstation, which services as a
printing server in office as well, to stop freezing the frontend
applications? e.g. MSOutlook, Excel, Work, etc.

We are currently having a problem that the performance of its frontend
applications are highly affected as a print job is queuing. Actually, most
of the printings are graphics and photos.

I've set the system performance option to "Applications" rather than
"Background services" already. How can I prevent the computer from stop
responding to applications and keyboard typing? Can I use the performance
monitor to check it?

Thanks,

Leonard