There have been previous reports of slow exports but you are referring to printing.
There are many factors that can impact performance such as: the Excel version, the amount of data, how good is the connectivity, how much memory the pc has, whether there is any pc clean up e.g of old temp files, what else is processing on the network or pc at the same time etc. See https://www.add-ins.com/support/out-of-memory-or-not-enough-resource-problem-with-microsoft-excel.htm
Do you get the same problem if you print from the server? Is rdp involved? (if so then see e.g.: https://www.axug.com/communities/community-home/digestviewer/viewthread?GroupId=205&MID=11704&tab=digestviewer&CommunityKey=182d53cf-429b-4c75-a580-d5950846fd14)
I suggest start with this link https://docs.microsoft.com/en-us/dynamics365/unified-operations/dev-itpro/office-integration/office-integration-troubleshooting.