How does this skill help identify React Native bottlenecks?

It provides step-by-step instructions for using profiling tools like Flipper, React DevTools Profiler, and the built-in Performance Monitor to track render times, bridge calls, and component re-renders.

How does it handle memory management in React Native?

The skill offers standardized patterns for cleaning up event listeners, clearing timers, and preventing async state updates on unmounted components to eliminate common memory leaks.

Can it help with slow FlatList performance?

Yes, it includes specific configurations for props like removeClippedSubviews and getItemLayout, as well as migration guides for Shopify's FlashList to handle large datasets efficiently.

Does it support animation optimization?

Absolutely. It covers implementation patterns for the native driver in the Animated API and advanced usage of the Reanimated library to ensure animations run smoothly on the UI thread.

React Native Performance Optimizer

Name: React Native Performance Optimizer
Author: armanzeroeight

byarmanzeroeight

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Mobile Development

Optimizes React Native application performance by identifying bottlenecks and implementing best practices for rendering, memory management, and bridge communication.

About

The React Native Performance Optimizer is a specialized skill designed to diagnose and resolve performance issues in mobile applications. It provides actionable guidance on profiling with tools like Flipper and React DevTools, optimizing complex list rendering with FlatList and FlashList, and reducing bridge overhead. Whether you are dealing with sluggish UI, high memory consumption, or janky animations, this skill offers code-level implementation patterns for memoization, native driver usage, and resource cleanup to ensure a fluid user experience across both iOS and Android platforms.

Key Features

Memory leak detection and cleanup patterns for listeners and timers
Smooth animation implementation using the Native Driver and Reanimated
Deep profiling guidance using Flipper, React DevTools, and Performance Monitors
High-performance list optimization techniques for FlatList and FlashList
19 GitHub stars
Bridge communication optimization through batching and interaction management

Use Cases

Accelerating app startup time and optimizing initial bundle loading
Reducing application memory footprint to prevent crashes on low-end devices
Fixing frame drops and UI lag in data-heavy React Native screens

About

Key Features

Memory leak detection and cleanup patterns for listeners and timers
Smooth animation implementation using the Native Driver and Reanimated
Deep profiling guidance using Flipper, React DevTools, and Performance Monitors
High-performance list optimization techniques for FlatList and FlashList
19 GitHub stars
Bridge communication optimization through batching and interaction management

Use Cases

Accelerating app startup time and optimizing initial bundle loading
Reducing application memory footprint to prevent crashes on low-end devices
Fixing frame drops and UI lag in data-heavy React Native screens