Question

A canvas app used by field technicians loads slowly, taking 15 seconds before the first screen becomes interactive. Users report the delay happens every time the app launches. You need to identify which operations are causing the startup delay before making any changes. Which approach should you use first?

Accepted Answer

Attach Monitor to the published app and review the events captured during OnStart to identify long-running data operations and their durations.

Answer

Add a Timer control to each screen and log the elapsed time to a collection displayed in a label.

Answer

Enable the 'Delayed load' setting in App settings and republish, then ask users whether startup improved.

Answer

Move all data source queries from OnStart into the OnVisible property of the first screen.