Sonarr hogging cpu when RSS sync on raspberry Pi

Sonarr version (exact version): latest
Mono version (if Sonarr is not running on Windows): 3.0.19
OS: raspbian
Debug logs:
Description of issue: when I click RSS sync or automatic the cpu usage sky rockets to like 150%… On raspberry Pi 4

That mono version looks really ancient…

The exact version, not latest, there are at least 3 “latest” versions that could be.

Processing results requires CPU, there is no limit imposed and when it’s done it’ll stop using the CPU, you may be able to give it a lower priority in the OS, but it’s going to use what’s available to it.

Sorry but everything is latest I forgot the exact version but it ended with .19 in out atm

Sorry I’m out that’s why couldn’t provide it , I am using latest everything don’t know which exactly… but thanks so I’m guessing it’s normal…