My turntable sounds like the speed is too slow

Perhaps clean and lube the bearing?

First get hold of an inexpensive strobe or use the cell phone app and verify that it’s running slow and how slow.

To check for belt slip, make a mark on the platter and the belt, eg, using a magic marker, and see if the two marks stay aligned as the platter rotates.

Thanks for the tip.  I measured at it reads average 33 1/3 RPM.

I guess it’s not the speed?  What else could I trouble shoot.