1. Why a crew is boarding after requested boarding? It seems unreal.
For the obvious reason to save you some time.
2. Very long duration of the boarding. My aircraft is connected to two jetways. I requested boarding of 312 passangers. 20 minutes after I click the request, only 110 passangers was aboard... with "dense" boarding option set.... It seems unreal. I don't want to wait 45 minutes for passangers boarding.
Dense was probably not enough.
3. Moreover, cargo loading takes only 5 minutes and the finish of loading was before the end of passangers boarding. It's also unrealistic. In real world the end of baggage loading is limmited by the last passanger is aboard due to the safety reasons (each suitcase must have an owner on board).
For the obvious reason that, while passengers are now counted 1:1, luggage and cargo is not, you don't see hundreds of bags and/or dozen of ULDs. That was how GSX always was, long before passengers came. We might eventually consider doing something similar to cargo to what we did with passengers.
4. Repeated the same annoying sound during boarding "- Welcome aboard. - How are you? - I'm doing good!"
This has been discussed so many times on the forum and, we confirmed the frequency of these chats will be lowered in the next update.
See how 1:1 reality (the one you asked for bags/cargo, for example), sometimes might be annoying, since a computer cannot obviously replicate the variability of the real world, were usually each passenger is greeted, but we have a limited amount of sounds waves so, of course, they might sound repetitive after a while.