MyPhonak app connection to Samsung Galaxy S21

I use the MyPhonak app to adjust volume among other things. Every time I pick up my phone to do so the app needs to reconnect. This takes a while and is very annoying.

Does anyone know if there is there a way of keeping the app active between putting the phone down and picking it up again to use the app.
The phone is a samsung S21
TIA…

Annoying at times I agree. I think the trade-off is battery drain on the hearing aids.