Freqtrade as a Linux service i got an timeout problem

Hi thanks for your great work and yt videos, i run Freqtrade on a Rasperry Pi. It works pretty fine, but if I try to run Freqtrade as a Linux service i got an timeout problem. I tried to increase the TimeoutStartSec in the /etc/systemd/system.conf. However, this does not solve the problem. Do you have any idea what I need to adjust to solve the timeout problem?

Greetz