Notify users that Rally projects may take a long time to load when creating an integration

What is the challenge?

Experiencing a significant lag (5 minutes+) when setting up Rally integrations. During the project selection step, the page appears to hang because it is loading significant volumes of projects and related settings from Rally

What is the impact?

Users are refreshing the page or restarting their browser because they believe it is hanging, meanwhile it is actually busy processing

Describe your idea

Add a message to warn users that this step in setting up the integration might take a long time depending on the volume of projects and settings in Rally. Alternatively, provide a progress bar so they can see that the app is still busy.