I've noticed many times when we arrive that people are reluctant to touch luggage that isn't theirs. The luggage carousel will fill up and then everyone just stands around --- including the baggage handlers. They stop putting bags on outside, because the conveyor belt is full. If people will simply pull bags off and set them aside -- the handlers can continue to fill the belt from the outside. This makes the whole process much faster.
I thought it looked like they were adding a new baggage handling system when we departed in February, but I couldn't get a good look as we walked to our plane. Maybe the process will be better by next year.
In the meantime......just a suggestion.