We went on the Vista in April. The best I remember from the time we got in line to the time we got on the ship just under 30 minutes. We arrived about 10:40 for a 10:30 boarding window. First off the line started outside. It was warm, but at least it is covered. I think we were there for under ten minutes. Then inside thru the maze of roped lines to get thru port/terminal security. They checked our Verifly for vaccine, photo Id and passed us thru. Final section was Carnival check in upstairs. Went thru the scanners for carry on bags, they looked at our boarding passes, verified our onboard spending account and took our picture. Since we were past the 10:30 start time we walked straight on.