Question about Philips 5400 series EP5447/90

Approx. one minute

Hello,
I've watched a few videos, and the interface seems unresponsive or even frustrating: changing the temperature, the quantity of beans, or the milk seems to require you to press several times on arrows that react slowly (>0.3s).
Can you tell me what's really going on? Is this something you do often, do you get a fluid sensation? or have you just taken the trouble patiently?