If the ship is docking during a port visit, disembarking the vessel generally goes quite smoothly. The ship's excursions are organized to meet in specific locations on the ship, or just off the gangway at the pier.
When tendering is necessary, it gets a bit more complicated, as ship's excursions generally get to tender first, along with those VIP guests and suite guests who get priority tendering service. Even so, in that situation you can generally reach land within an hour or hour and a half of the beginning of tender service.
We're sailing Sapphire before you