We were on board in 23 minutes last Friday the 23rd with a 1215PM check in for Princess.
We went to our cabin, drop items off and proceeded to Princess Grill Restaurant for a delightfully lunch.
You do have to go thru document check, vaccination paperwork check, security/frame checkpoint and directed to Grill Line. Much smaller than Britannia and lower.
Once finished most done online we procedure directly to the ship and boarded.
23 minutes, yes at 10 Deck Cabin Door.