Just to report back that it was pretty easy to squeeze in 30 mins in the lounge leaving plenty of time to get past security. Altho the lounge is pretty basic & an awful one to have access to considering the other Oneworld lounges there are in other places
No wonder some people said security can be slow - there were almost 100 people queueing & they only chose to open 1 scanner. There were 3-4 other scanners with staff idly chatting away ignoring the queue of people