Speed of self hosted server


I currently use OneDrive and Google Drive and am thinking of setting up a Nextcloud docker on my UnRaid server.

Can i ask anyone who has done this what the real world external speed of the system is. I currently have an 11.7Mbps upload speed, which im asssuming will become my external download speed.

Hopefully that makes sense. Im new, be kind.

Apologies if this is posted in the wrong place.