Boarding and on board services | easyJet

according to the above page easyjet close the gate 30 minutes before departure so go by that rather than what time the doors close.

also on the few flights I and friends have done they are pretty strict about maintaining the order of boarding and if your not there when they call your group to board then it’s basically tough so if you’ve say bought speedy boarding and don’t board when it’s called they won’t let you move up the queue of the rest of the groups.