If you run a cafe / restaurant here is one of the best tips you can have.
Try and bring the table all at once , whether it is a 2 , 4 , 6 , 8 etc
Let me give you an example.
I was at a cafe this week for breakfast and there were 7 of us.
2 cooked breakfast's came out first , wait 5 minutes then another 2 cooked breakfasts came out , wait a few more minutes then a serve of toast came out , then & here is the trump card , 2 serves of muesli came out ( the easiest thing to prepare).
A bit of preparation and all the meals could have arrived at the same time.