Web Performance: The African Case
summary
African users often have slow 3G mobile only access and low‑end phones with 2–3 GB RAM, so downloading 30+ MB of JavaScript is an actual barrier: 15 GB can cost half a month’s salary in some countries and three to four times minimum wage in others. Qwik’s resumability sends HTML and a ~1 KB global listener, uses a service worker to prefetch and cache only needed chunks, and demoed buttons that download and execute JavaScript on interaction rather than on initial load.
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chapters (6)
- 0:00Introduction and background
- 8:08Core Web Vitals explained
- 13:48SPA performance challenges
- 16:41Resumability paradigm
- 21:19Demo: Resumability in action
- 23:07Why performance matters globally
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