Here are some tips for you to win levels:
1- Do not collect all the coins from the counter at once—this will help you allocate time efficiently. Customers who came in at the same time need to be served together before they run out of patience.
2- Prepare the main dishes in advance to cope with the constant flow of customers. If you were not able to predict an order, use trays to store prepared food.
3- Upgrade both your kitchen and the restaurant's dining area to complete levels with ease!