It would depend on the individual.I can hear when there is a more than 2% deviation in speed having compared recorded samples from vinyl on a computer.The piano is a good indicator of speed response,so play some piano records and see what you think.
At what point can you hear a Fast or Slow Table?
Using the KAB speed strobe my Turntable is right on speed. However, when accounting for stylus drag the speed drops to precisely (according to KAB) to .37% slow with the needle in the first track. Is this minor enough to just let it go? Can this even be heard by someone with perfect pitch?
The table is a brand new P5 with TTPSU
The table is a brand new P5 with TTPSU