Try going through some of the Asian airports where they have high numbers of passengers, especially from China, who are first time flyers..... they do not have the problems that Manchester seems to have in the security areas. They are calm, no shouting, and still manage to process the passengers without the daily disruption that Manchester creates. Even in the UK, Gatwick probably has as many infrequent flyers, if not more than MAN, but still their security is speedy and CALM.
I just wish people would stop finding excuses as why MAN has the problems that few other airports world-wide have.