How quick users think your site is — measure and speed up perceived performance

In this talk, I would like to demonstrate ways to speed up perceived performance and how we can measure it using the latest RUM (Real User Monitoring) metrics. The specific topics covered in this presentation will be how people sense time, techniques to achieve better performance perception in comparison to the actual expectation, synthetic monitoring vs. RUM, First Paint / First Contentful Paint (FP / FCP) using the Paint Timing API and Time To Interactive (TTI) via PerformanceObserver.Slides