HP Universal Print Drivers Incredibly Slow

I was migrating from a Windows 2003 print server to 2008 R2, within the first few minutes of testing we had major print delays. It was taking at least 30 seconds to spool each page, I tried several suggestions from this site and others with no avail. I decided to try different configurations myself, after some trial and error I found the fix for me was to change the print processor under the advanced tab to hpcpp115 RAW. Hope this saves some headaches.

We had a similar problem and fixed it by changing the printer type.

Can you set up the 8100 as a different series? What if you configure it in Windows as an HP 5si, or an HP 9000? If you are just printing, and not using special trays frequently, this should work.