This audit is not structured as a "pass" or "fail" test. It's just an opportunity to discover a useful API that can aid you in measuring your app's performance. The score that Lighthouse reports for this audit corresponds to the number of User Timing Marks and Measures that it finds in your app.
When your app does include User Timing Marks and Measures, you'll see these Marks and Measures in your Lighthouse report.
Lighthouse extracts User Timing data from Chrome's Trace Event Profiling Tool.
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