Printing is very slow.

Hi, does anybody have any idea how to speed up Sage MAs 200 version 4.5 printing. when i print or preview a document, such as an invoice, every invoice take 1 minute to print out/preview. We checked our internet provider and was advised that our internet is fast enough that it should not to cause a delay in printing  The printer is usb printer and directly connect with the computer. In our system, only one computer has this issue. Any help will be highly appreciated. Thanks :-)