6TB book - extremely slow

I am trying to copy 7.28GB from a 2TB WD passport to my 6TB WD book.

On the 6TB I still have 650GB available.

Time for copying via fireware is 45minutes.

It never happen before. Any suggestions? Is my 6TB too full?



Hello, if possible try to transfer the files from another PC to see if the same problem happens, also check if you have any programs running in the background that might slow the transfer rate.