Stop Guessing, Start Measuring: A Primer on Debugging Web Performance

Ever heard “it feels slow” but didn’t know where to start? This session helps you move from gut feelings to measurable insights. We’ll break down how to use the Chrome DevTools Performance Panel to uncover what’s really slowing your product down - whether that’s long load times, janky interactions, or sluggish user experiences.

No matter your role - developer, designer, product owner, or anyone invested in creating smooth, responsive experiences for your end users - you’ll leave with practical strategies to diagnose performance issues instead of guessing.

🗣️ About the speaker
Jonathan has spent the last decade moving between design, frontend engineering, and leading software development teams across web and mobile platforms. He’s been a core part of many product launches at scale, learning where things often get lost between vision and execution. Now independent, he focuses on helping teams bridge design intent with the technical execution needed to deliver reliable, performant user experiences.

🙏🏼 FEDSA is powered by the Support of Our Sponsors
Khanyisa Real Systems (KRS) has been shaping Cape Town’s tech landscape since 1987, delivering smart software for startups, corporates, and government. With nearly 40 years of coding experience, KRS helps clients turn complex challenges into elegant, effective solutions. As a proud Microsoft Gold Partner, the team specialises in web app development, data management, and cloud solutions, and is deeply passionate about growing the SA developer community. Learn more at krs.co.za

NML is a software development partner to leading businesses in financial services. We design and build secure, scalable platforms tailored to asset management, lending, and insurance. With a focus on seamless user experiences, robust architecture, and long-term adaptability, NML helps clients turn complex challenges into elegant digital solutions. You can learn more at nml.co.za.

IO Digital is a remote-first software development company that partners with startups and enterprises to build and scale innovative digital products. With expertise spanning web development, operations and technical strategies, IO empowers clients across South Africa and internationally to grow through tailored technology solutions. We value collaboration, agility and long-term partnerships, ensuring each project delivers impactful and measurable results. Learn more at io.co.za

🤷‍♀️ What is FEDSA?
Front-end & Design South Africa (FEDSA) is a registered non-profit organisation that serves as an administrative umbrella for various projects that advance knowledge-sharing between practitioners and aspiring practitioners within the industry.

📜 Fineprint
FEDSA's Code of Conduct is here: FEDSA Code of Conduct. We're serious about offering a warm, inclusive, safe space to learn.