It's always like that after the glut of crossword questions that are asked over the weekend. It's usually back to normal midweek.
You could email the AB Editor to ask the reason and let us know.
It was ok on Friday. I got a long way back.
Sometimes if you google the question you want to ask you are directed to it in the AB, if it's been asked already, but not always.
I hope this helps. I'm not being sarcastic in any way.