Performance Does Matter - Making Your React-Native App Fast
summary
Wix reports almost 60% cumulative improvement across performance metrics after targeted work: switching Android to Hermes yields up to 50% faster startup on some devices, inlineRequires cuts iOS startup ~20%, and run/ram-bundle + preload reduces initial JS payload from a 21MB monolith. Inventory finds 35% of users on >2‑year‑old phones, so bundling, replacing Moment with tiny date libs, using native-driver animations, and tools like Flipper, react-devtools, why-did-you-render and detox instruments drive measurable wins.
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chapters (5)
- 0:00Introduction
- 5:26Infrastructure improvements
- 19:15Code optimization tricks
- 30:34Tools and monitoring
- 38:41Summary and Q&A
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