Currently going 52 miles an hour and I’m doing a ride on zwift. I’m noting plenty of other people flying past as well.
I have restarted 3 times and have also calibrated my trainer.
I now believe you are one of the “super fast riders” that are riding at warp speed past me, see my post about this. I thought this was a glitch on my laptop but it may be something that broke with other setups. I guess riders passing be at 50-60mph would be much faster than the 20-25 I was doing. But is seemed like they we going way faster than just 2x-3x my speed.