One thirty two thousandth

I was just curious to see how the fastest shutter speed on my camera would capture this.
The blurry drops have moved about a centimetre so that’s 32,000 centimetres a second which comes out at about 1100 km/h - Which is obviously bolox. I haven’t got a supersonic sprinkler. So Olympus are either liars or they measure e shutters differently to how I imagine.