I just joined today and have been running into some trouble. I am saving for a smart trainer but right now am going the cheap route, with a secondhand fluid trainer, my bike, and a cadence/speed sensor.
When I did my initial Watopia ride, I was astounded to find where the software ranked my speed. Without trying that hard I was setting monthly segment records and I even placed 2nd all time in one segment. I’m a pretty average guy so I know that this estimation is off. I also tried on my wife’s bike and had the same result. Though I may get a smart trainer someday, I am wondering what I could do now to rectify this issue, since I feel bad placing in all these leaderboards when I know I’m not there. The sensors are correctly configured and I selected the right fluid trainer from the list. My only theory is that perhaps Zwift thinks I’m getting a lot more resistance than I am.