performance.sync(2026)

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