sorry if this is a repost, was interrupted first attempt posting:
anyway, had the same problem of the turntable starting to drag and slow down, even with speed control set to the max. as another user said, Crosley turntables are obviously crap. I play heavy shellac 78s on mine primarily, and it started dragging also. disassembled and found the plastic on plastic turntable bearing which bears the downward weight of the record and turntable, was rough and the surface was partly shredded. resolved by inserting a thin sheet metal washer I cut with snips, and applying a generous amount of plastic-friendly lubricant which comes in a thick oil form in a tube for $5 off Amazon, called "super lube o-ring silicone lubricant".