I worked for Hobart many years ago, one of the guys had a commercial stainless steel model that had a three minute cycle! That machine was a tank.
That was a commercial model, Hobart makes a undercounter model for small commercial kitchens and bar glassware.
My daughter has very hard water with a lot of sediment in it and has filter but dishwasher only lasts about 2 to 2.5 years
Install a water softener!