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Andrea Verlicchi

Making the web faster and more user-friendly

Improving Web Responsiveness - Interactivity improvements from real-world cases

On , I had the pleasure of speaking at the performance.sync() event in Amsterdam. It was a pre-conference meetup for the performance.now() conference, and a great opportunity to meet and learn from other web performance experts.

My talk, "Improving Web Responsiveness - Interactivity improvements from real-world cases", was a 15-minute session where I shared practical techniques for debugging and optimizing slow interactions on websites.

Interaction speed is a key aspect of a site’s responsiveness to user interactions. This talk demonstrates practical techniques for improving slow interactions through real-world case studies of debugging and optimizing poor interaction speed.

Watch the video of the talk if you want to understand how to identify, troubleshoot, and fix slow interactions, ensuring a consistently responsive user experience.

The slides are available at the following link.

📽️ Slides

And here's just a picture of me on stage, just to provide eleventy with an image for the posts list. 😉

Andrea Verlicchi wearing a yellow sweater speaking on stage at the performance.sync() meetup in Amsterdam. The current slide shows "Slow GTM Code. Audit. Remove. Update. Not enough?"
On stage at performance.sync() 2025.