Think it's more to do with efficiency / eco reasons that it takes 4 hours. It soaks the dishes then turns off and waits, and does this multiple times. This min

Think it's more to do with efficiency / eco reasons that it takes 4 hours. It soaks the dishes then turns off and waits, and does this multiple times. This minimizes the actual amount of work needed. It's not spraying continuously like an older dishwasher might.