Why do the performance summaries on the Maps page and the Flights page differ for the same route?

Since the Maps page doesn’t allow you to enter payload, fuel details, or an alternate airport, it will calculate performance results assuming minimum payload weight (the minimum crew requirement for the selected aircraft), the Minimum Fuel Required fuel policy, and no alternate. If the settings you configure for the same route on the Flights page differ from these, the performance results will also differ.