I mean it all sounds fun but when you consider for example low-cost airlines in Europe (WizzAir, Ryanair) they’re really efficient without any of this, since their margins depend on it. Surprisingly their boarding isn’t as structured (only priority and then the rest) and they still only take around 30 mins total from first to last passengers being let through a gate in my experience. Their trick is probably some combination of motivated passengers, asking people to put stuff under the seat in from, remote stands that need a bus and flight attendants constantly announcing „please don’t block the aisle”.