Apdex is an important score that measures your application performance. You can adjust the Apdex thresholds (Satisfactory, Tolerable, and Frustrating) for your application and for its key user actions to refine the Apdex calculations.
Configure Apdex settings for your application
Go to Web.
Select the application that you want to configure.
In the upper-right corner of the application overview page, select More (…) > Edit.