My Speed / Distance seems incorrect. Why?
Your trainer and/or ANT+ device's wheel circumference (WC) is likely incorrect. Go into the rider display's menu and set the wheel circumference from there. This then permanently sets the WC to the correct value, no matter what athlete is assigned to that position.
If the WCs vary from person to person then set their correct WC in the athlete's profile under the ANT+ Options section within PerfPRO Studio (not Analyzer).
Also, note specific trainers like Elite have some very unique WCs that need to be set. For example, the Elite Direto requires a 173mm WC and the Elite Drivo requires a 630mm WC.