Made some big changes to my photos library and need my TimeMachine on Big Sur to backup faster over the network to my Drobo.

Searched and found a few tips. First one is this command to remove process throttling:

 sudo sysctl debug.lowpri_throttle_enabled=0 

This still was not enough so then I also tried the renice command:

sudo renice -n -20 -p 565

To get the process id I just used activity monitor and looked for “backupd” in the Activity monitor.

Now I see the “backupd” process jumping up to as much as 50% of the CPU. Since I am on an Apple Silicon M1 I wasn’t too worried about it slowing down.