RNS 810 always takes a long time to start.

hello together… is this a feature or a bug? sometimes my RNA is up and ready for use right after the start of the engine. but mostly, even after only a short parking, it takes forever until it is up. that’s annoying just when I want to park out, but can’t access the rear camera. what’s the cause? and are there solutions? also the steering wheel sometimes loses its adjustment out of the blue. time and again I’m on the trail. stand the tec hnik??? the automatic air turns off often idiosyncratic… is my phaeton a fun bird?