Seems to be far more queues at the entrances nearer to city square.
The more you venture around towards the away end the lesser the queues become.
Just went into K1 then and it took me seconds to get in.
My only concern is security as these queues are easy targets for potential terror attacks.
Also, to note, many people in the queues which are closer to the Square are full of newbie looking fans, such as tourists (pointing everywhere, wondering what's what) and group activity organisations, with loads of under 10's kids on daytrips.
If you can, walk around and come in further around.