About

performance.sync(2026) is the official pre-conference meetup for performance.now(), sponsored by Mozilla, taking place the evening before on 18 Nov 2026.

What to Expect

Short talks from web performance professionals, followed by drinks, light snacks, and plenty of time to socialise. Whether you're here to learn, share, or simply meet the people behind the work, it's the perfect way to ease into performance.now (). We can't wait to see you there!

Schedule

We’re excited to feature a line-up of short talks from performance experts across the community:

Annie Sullivan - Soft Navigations in Core Web Vitals
Jad Joubran - Experimenting with Declarative Partial Updates
Estela Franco - Next.js: The Final Boss of Web Performance
Nazım Can Altınova - From Slow to Fast: Agentic Profiling with Firefox Profiler
Marko Ilić - Your New Profiling Intern: AI-Powered Browser Tracing with DevTools MCPs
Patrick Meenan - Optimizing for performance in the age of AI
Dan Gayle - Making LLM-assisted web performance audits suck less
Karlijn Löwik - MCP? Kinda cool for a RUM: real-world use cases

# Tech

Open on luma.com ↗

Speakers

Annie Sullivan
Jad Joubran
Estela Franco
Nazım Can Altınova
Marko Ilić
Patrick Meenan
Dan Gayle
Karlijn Löwik

Also on Wednesday 18 November

All dayFrench Defence & Security TechThe Hague 09:30AIAIAI HackatonAmsterdam 13:00Scaling People-Centred Justice with AIThe Hague 13:30VR Workshop EARTH FROM SPACE®Amsterdam