Hello TheBonden,
I searched the Knowledgebase and found an article on how to resolve slow printing that may help resolve your issue.
hi we have 13 printers in the house most are model 8055
there is one of them where when you print on it from tray 1 then print it on the back it means that it prints at half speed as it runs it out and turns even if it prints 1 sided print
on the other printer there is nothing wrong some can say where the settings are