Direct-drive trannys (Whirlpool, KA, KM, Roper, Estate, Inglis ... and then MT, Amana, Admiral, and Crosley when relevant) typically run at:
180 SPM agitation on high motor (1725 RPM)
120 SPM at medium motor (1140 RPM) for a 3-speeder, which is low speed for a 2-speeder
90 SPM at low motor (850 RPM) on a 3-speeder, which is ex-low or low or handwash or whatever it may be called.