Power BI has a new feature as part of the May release called the Performance Analyzer. The release notes caution that the page might be describing a feature that is not fully released, so this is a ‘look forward too’ option.
The reason it is important is because it lets users see what responce certain interactions of a Power BI report are getting. Here is the offical release – https://powerbi.microsoft.com/en-us/blog/power-bi-desktop-may-2019-feature-summary/#perfAnalyzer.
This is a great option to find out the exact area of a report that is having performance issues. Microsoft is answering the requests to make PowerBI more and more usable for IT profressionals. Look at all the May features with this link – https://powerbi.microsoft.com/en-us/blog/power-bi-desktop-may-2019-feature-summary/