Room for improvement regarding the timing, does anyone have tips?
Just reading these setting options like "rest mode 75%" makes me feel sick. Why do most heat pumps come with such stupid regulations (Vaillant thread with 529 pages is also incredible).
Sorry, I can't help you there. My heat pump doesn't have such settings. Pana is much simpler without such pointless options.
BUT: With the weather outside and your still existing indoor temperature, you have the problem that the heat pump is still simply producing too much heat. Conversely, the house just hasn’t cooled down enough yet. And with maybe good heat gain through windows, it will take even longer until the heat pump runs smoothly. The still relatively mild daytime temperatures don’t help either.
Just let the heat pump run from 5 a.m. to 10 a.m. and not during the rest of the time.