Hey Sami, were you at the gate monitoring every single ramp activity from the point the aircraft parked till the doors are closed? Maybe the cockpit crew was even more professional than you ever experienced elsewhere and have completed the walkaround BEFORE you dragged your sorry behind thru the shops to the gate!
As for cabin crew, what other airlines are you comparing with? QF? I have seen QF cabin crew stuffed down a huge juicy burger at the gate and made a big mess out of her uniform, surely that's professional. What they do in their own time is absolutely none of your f-ing businees, technically their job is there to ensure your safety during the flight, they don't even have to serve you food or drink if you ain't gonna die from starvation or dehydration. And just be glad you ain't travelling with a NA airline else you would probably get scolded at if not kicked off the aircraft for being a nosey little girl.