[Solved] Idle CPU 30% useage after adding simple custom_components

I added dht and rpi_gpio to custom_components on my Rpi4 4gb. Homeassistant now has one dht22 sensor, a contact sensor and a gpio switch configured.

After adding these entities, the average idle cpu usage is now ~30% while it was only ~4% before.

Is there any way to monitoring current processes or diagnose, which component needs the computational load?

Thank you for your help!

Solved by stopping unused Addons. Leaving this here in case anyone has a similar problem.