Slow backups

Provided you are backing up to a quick internal SSD (non mechanical drive), then that usually means you have a very large mail database.

So if the mail database is very large and Interferring with your computer work time, you can adjust when the automatic backup runs by “changing the schedule” to what ever days & time you want.

See @Gary post below on how to do that in Windows.

See @Steve_D for how to change the automatic backup schedule on Mac.

Alternatively “you could also disable the automatic backup” and then just manually do the backup anytime via “Menu / Backup” to avoid Interferring with your work time. If you do decide to manually backup, you can see when the backup is complete in Show Operations via clicking the drop-down on the right of Refresh top left.