Commercial dishwasher are more like sanitizers. In a restaurant the dishwasher is the guy scraping the food off. Home dishwashers run for a long time because they are basically liquifying the leftover food, milk, and grime.
I have done that job. I was the dishwasher. After I cleaned off the gunk on the dishes with the commercial power sprayer, I loaded the trays into the commercial steam dish sanitizing machine.
That's not what I want for a home dishwasher.