Let’s define Speed of Service. People have pre-determined expectations for service and the experience in a restaurant. When do they get their order of drinks or food? Start with the most time-sensitive: QSR – 90 seconds to 3 minutes Fast Casual – 4-5 minutes Casual Dining – 12-14 minutes Fine Dining / Destination Restaurant – 30 minutes plus If more than 4 People are queuing, you are losing Sales.