Limit CPU Usage

[mplorentz]

Is your feature request related to a problem? Please describe.
Running Vorta on my MacBook Pro causes the fans to spin up and my computer to get hot.

Describe the solution you'd like
I'd like a way to limit the cpu usage of Vorta/borg, resulting in a quieter, cooler, less noticeable backup.

Describe alternatives you've considered
There are some command-line tools (nice, cputhrottle) but I can't find a way to automatically run them every time Vorta starts a backup.

[rbirkelbach]

Yes, I have the same problem, too on a mbp 15,1 with a 2.3ghz 8core i9 processor and 16gb ram.