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Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/46103 Reducing the boundary of rerender of virtual lists. Previously with prop: "strictMode={true}" the VirtualizedList still re rendered each CellRenderer component. Because method getDerivedStateFromProps generated every time a new uniq state and the cells didn’t have a PureComponent. It helps to improve react performance for lists which have 5+ elements. I reused recomended approach from react doc https://legacy.reactjs.org/blog/2018/06/07/you-probably-dont-need-derived-state.html#what-about-memoization changelog: [internal] Optimizing CellRenderer of VirtualizedList Reviewed By: NickGerleman, sammy-SC Differential Revision: D61493434 fbshipit-source-id: 917a33e48bd2f18e8ac150e5701d2e7c45dbe879