While annoying, the boarding pass scanning process usually isn't the bottleneck.
After I scanned my boarding pass, I then waited in line in the jet bridge, because people in the plane were busy putting their luggage in the overhead compartments, searching for their seats, moving to let people sit in the window seats, and other assorted activities.
After I scanned my boarding pass, I then waited in line in the jet bridge, because people in the plane were busy putting their luggage in the overhead compartments, searching for their seats, moving to let people sit in the window seats, and other assorted activities.