Fortunately, your airport has a decent view of the queues from the Lounge, so no need to scramble downstairs.
However, if it's where I'm presuming, people do tend to take a lot of handbaggage so perhaps that's the rush to board.
If it's any consolation, at CMB they board UL flights from the rear. Despite shouting Rows 25-31 ONLY, literally everyone charges at the single entry door!
M