Doorbird unlocks Danalock with high delay

Hi, I have an issue that looks to get a bit worse over time. My doorbird is reacting slower and slower to the button with the key that activates a flow to start opening the DANALOCK. This flow is also being used by a SW button in the Homey App and a HW button in the house.
The SW and HW button have reaction time of about 1-2 seconds (ball park) and the doorbird App / unlock button seems 507 (ballpark).
Any one familiar with the behaviour or anyone experiences with Cloud services calling API’s that have an increase of delay?