Dietpi-sync runs Very slow

Hello, i have a 8TB drive that I’m using to store all of my backups. The other day i bought another 8TB drive that’s going to be offsite so i used dietpi-sync to mirror the drives from the same RasPi and the speeds were around 60 MB/s. once it was done i moved the offsite drive to another RasPi (both model 4’s) and ran a sync again just to get it all set up for when i take it to another location. This time though the sync is transferring at 200 kB/s.

Both are plugged into Ethernet so I’m not sure whats slowing it down.


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Edit, so it looks to be speeding up a bit. though now that the ir-chk stopped moving the first number keeps going up.