OES2sp2 (64 bit)
Windows 7 X64 8GB mem iPrint client 5.78

I have the issue that sometimes printing complex documents is very slow (more than 20 minutes before printing starts.
Printing directly to the printer's IP-address is fast.

It looks like (haven't confirmed) that if it is slow when I cancel my print and resubmit it is fast.
I turned on logging for the iPrint client, but nothing really apparent show up.

Any suggestions?