Quick and Efficient!

My family visits two Chinese restaurants rather frequently. Let's call them CJ and DK. Whilst both restaurants have POS systems in place; when it comes to efficiency, I have to say CJ wins hands down. With chinese food, we want all the dishes to be served simultaneously, to be eaten with the rice. CJ always fulfil this criteria. Plus the food is of excellent quality. However, with DK, though the food is good, there will always be an occasion whereby one dish only comes after we have finished all our rice. I wonder what went wrong. Perhaps they need to upgrade their POS system. Perhaps I should go and tell the restaurant manager.