Julian Jandl at performance.sync() 2025: Peak Performance with Partytown: Tackling the 3rd party challenge in big enterprises - A Case Study

performance.sync() is a meetup sponsored by Mozilla taking place on Wednesday October 29th - the evening before performance.now()!

What to Expect

Enjoy drinks and light snacks in a relaxed atmosphere where you can connect with fellow attendees and speakers. Whether you’re here to learn or share, this is a great opportunity to meet others passionate about web performance.

Schedule

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

• Sergey Chernyshev - 7 Levels of a Web Performance Journey

• Andrea Verlicchi - Improving Web Responsiveness - Interactivity improvements from real-world cases

• Brian Ramirez - Noise-Cancelling RUM-Based Alerting: Key Insights from Our Anomaly Detection Journey

• Medhat Dawoud - Speculation Rules in a Nutshell

• Robin Marx - Compression Dictionaries: Early Findings

• Michael Hablich - Using Model Context Protocol (MCP) to let your AI agent debug performance issues

• Julian Jandl - Peak Performance with Partytown: Tackling the 3rd party challenge in big enterprises - A Case Study

• Mike Kozicki - A New Approach for Cross-Browser Testing: A Community-First Approach