Julian Jandl at Performance Observer - Peak Performance with Partytown: A case study

On September 16, 2025, Julian Jandl will present Peak Web Performance with Partytown at PerformanceObserver, the virtual meetup for the web performance community.

45% of all website requests are third-party scripts that compete with your application code on the main thread, hurting responsiveness—especially on mobile. Julian introduces Partytown, a library that executes third-party scripts in a sandboxed worker thread, bringing true multi-threading to the browser.

With years of hands-on experience as a Lead Performance Engineer, trainer, and consultant at Push-Based, Julian will share real-world audits, case studies from billion-dollar applications, and actionable strategies for eliminating bottlenecks and boosting runtime performance.

📅 When: September 16, 2025 | 4:00 PM UTC

🌍 Where: Online – PerformanceObserver Virtual Meetup

Check the slides here: https://docs.google.com/presentation/d/1BCb7MBEHBj_l6bmGmuykzVHYIaxEDXAbR3hOMUKUCj4/edit?slide=id.g2efc3091481_0_42#slide=id.g2efc3091481_0_42