Fast food - really that fast?

I was very hungry when I was on the way back home after a stupid business trip. I saw a fast food outlet so I stop by for it.

In my line, I have 2 customers making order.

In fast food standard, they manage to take about 10 minutes to serve 2 customers, that mean 5 minutes for each customer.

I saw the staff walk walk back and forth for each single item. Talk about efficiency.

In the end, I should just go to the restaurant and eat, it might be faster that the fast food.