Analyze Your Lightning Page Performance
Where: This change applies to Lightning Experience in Group, Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.
How: To view the assessment of your page’s performance, click Analyze from the Lightning App Builder toolbar.
Performance Analysis in App Builder is available for desktop record pages only.
We want to know what you think of the recommendations. Run an analysis, and let us know using the feedback feature included in the footer of the prompt.