Constant cpu load

[Jopp-gh]

Describe the bug
Planify is always one of the top processes in gnome-system-monitor, even in idle.
Some components of Planify cause a load/burden (Linux Mint cinnamon 21.3).
This constant load can be as much as a global 10% to 15% on my cpu. In the screenshot down below the loads is very low and not noticeable as a load number, but nevertheless, Planify keeps staying on the top, no matter what happens.

To Reproduce
Steps to reproduce the behavior:

1. Just open gnome-system-monitor or similar process monitor app and see Planify's constant load on the cpu. (My pc is a new build and oldest components are max 2yo)

Expected behavior
Usually apps on Linux are quiet or pretty quiet - even more, if you don't use them.

Screenshots

Desktop (please complete the following information):

• OS or DE: Mint cinnamon
• Version 21.3

Additional context
I've been using Planify for the past 3 months and monitored if updates didn't solve / mitigate this issue so far. Please look into this issue, bc you made a useful and good looking app.