By Guy Taylor The head of Emirates airlines, Sir Tim Clark, has said a London airport is “seriously lagging behind” its rivals and compared it to a run down Second World War hub. Sir Tim Clark, president of Emirates, said Heathrow airport had placed dividend payouts above running a top class business and criticised the experience of passengers using Terminal 3. “I was at Heathrow the other day and walking out of our lounge the ceiling height is awful,” Clark said. “It looks like a utilitarian structure, post-Second World War. It is just not good enough.” It comes after the UK aviation watchdog…