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A project focused on optimizing Core Web Vitals and migrating to Next.js resulted in a 5% increase in conversion rates and a 87% increase in pages per session...

Farfetch analyzed more than 1M pageviews and found that conversion rate decreased 2.7% for each additional second of TTI on mobile, and 2.1% on desktop.....

In emerging markets, maintaining optimal web performance can become a challenge: varying network conditions and different device topology cause issues. Thanks to trivago's rigorous testing culture, we identified these issues in one of our key emerging markets...

In this talk, Andy shares Marks & Spencer’s performance journey, what they learned along the way, and where they plan to go from here...