Tammy Everts - How Web Performance Shapes UX

2025-03-19

Tammy Everts unpacks why web performance is a fundamental UX issue, how slow websites affect user perceptions and business outcomes, and why designers need to take ownership of performance alongside developers. Highlights include: 02:14 - How did you come to own uber.com? 15:27 - What does performance have to do with UX? 28:54 - How do you identify the best executive champion for performance? 35:24 - Is measuring the business impact of performance as easy as it sounds? 46:37 - Why aren’t designers more involved in p...

Highlights include:

02:14 - How did you come to own uber.com?
15:27 - What does performance have to do with UX?
28:54 - How do you identify the best executive champion for performance?
35:24 - Is measuring the business impact of performance as easy as it sounds?
46:37 - Why aren’t designers more involved in performance?

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Who is Tammy Everts?

Tammy is the Chief Experience Officer at SpeedCurve—a platform that enables organisations to unlock the full potential of their web performance.

In her role, Tammy champions the connection between site speed, user experience, and business success, working closely with customers to deepen their understanding of how people use with their websites.

Tammy's career journey also includes senior UX roles at Soasta and Radware, and over two decades of pioneering research involving EEG headsets, facial action coding, and advanced machine learning.

She is the author of “Time is Money: The Business Value of Web Performance” and a sought-after speaker, having shared her expertise at prominent events like Chrome Dev Summit, Smashing Conference, and Beyond Tellerand.

Tammy also co-chairs the annual performance.now() conference in Amsterdam and co-curates WPO Stats, a valuable resource of web performance case studies.

Find Tammy here:

LinkedIn: https://www.linkedin.com/in/tammyeverts/
Website: https://tammyeverts.wordpress.com/
Mastodon: https://webperf.social/@tammy
X: https://x.com/tameverts

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