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Andrea Verlicchi

Making the web faster and more user-friendly

Talk video: "How I made the web more responsive — real-world case studies of INP optimizations", We Love Speed 2024 conference

On , I spoke at the We Love Speed 2024 conference about enhancing web responsiveness. Specifically, I discussed how to debug and avoid slow interactions based on my experience on auditing Interaction to Next Paint (INP) on clients' websites.

The title of the talk was "How I made the web more responsive - real-world case studies of INP optimizations", in French "Comment j’ai rendu le web plus réactif — études de cas concrets d’optimisations d’INP", and this is the video of my talk.

After providing an initial explanation of INP, I demonstrate how to debug slow interactions using both Chrome DevTools and Real User Monitoring (RUM) data. I then illustrate three common mistakes I encountered while auditing INP on dozens of websites and explain how to avoid them to ensure snappy user interactions and keep your INP below 200 milliseconds.

Andrea Verlicchi speaking on stage at We Love Speed, Nantes. The slide shows the flame chart of the performance trace run after an INP optimization
On stage at We Love Speed 2024.

📽️ Slides