@Ebbyfriedel 

Hi,
Currently, if you have set a detection zone on the Tapo app > camera's Device Settings > Detection page, when your camera pan & tilt to another position, the detection will follow the lens and change to a different position. You can adjust the detection zone after moving the camera's position.
The Tapo camera does not support the feature to adjust the camera detection zone automatically after the camera pans & tilts to another position.
Best Regards