Alas, I am in agreement, I have been adding stands and am currently at 36 medium stands, ~800 employees, and I have seen 6000 passengers with 3000 pieces of luggage and when the airport closes, the baggage will drop to 12. I have a 4 year old non-gaming laptop. Previous version would have caused my computer to throw itself out the window with this load.
I have also found that my performance drastically improves the more I make the passenger throughput to as close to as few decisions as possible. So, bathrooms are located immediately after the security check, followed by the non-choice walk-through area of the shops, then the food, then a simple pathing decision to find the line to the gate. If PAX have to make multiple u-shaped movement choices, it slows it a lot and increases the time the PAX are in the terminal.
I’ve also found that runway construction plays a huge roll in this process. All of my 4 arriving runways point to the upper right corner of the map, they all exit within a very short distance of each other onto the taxiway and I can have every jet on the ground and only 1-2 of them having stopped movement toward their gate.
Departures are the same way. There can’t be choices to take the much farther away runway for take-offs or landings. If they do, inevitably, that single choice for a plan to taxi the full distance of the airport can cause numerous other jets to sit idle until it passes by.
I am in agreement with the well done.