When I start my Application from within the Qt Creator, the Qt Creator freezes for multiple seconds.

The attached GIF shows tries to shows this.
The Application is started after ~2 seconds, then the QtCreators is freezed showing "Build" and no application output, before it reacts again after several seconds showing the "Parsing QML Files" and "Scanning QML Imports"

I attached the Debugger to it, when it freezes and tried to capture some useful stack traces at three different times, directly after it hangs (Stopped_1), in the midfield (Stopped_2) and when it reacts again parsing QML (Stopped 3).