Insights

Performance

Performance optimization is crucial for delivering a smooth, responsive experience in React Native applications. Explore techniques for improving startup time, reducing bundle size, optimizing renders, and handling memory efficiently to create applications that delight users across all devices.

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Article
4/11/2025

Profiling React Native Internals with Tracy for Peak Performance

Learn how to profile React Native internals with Tracy to uncover bottlenecks, optimize performance, and gain deep insights into your app’s native behavior.
33%
fewer re-renders across most features
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Event
3/26/2025

Running WASM in React Native Apps

Find out about executing WASM in React Native, the challenges of JIT restrictions on iOS, and how Callstack's wasm2c solution enables performant native modules.
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Article
3/20/2025

Why Knowing Your App’s Bundle Contents Matters for React Native Performance

Learn why your React Native app’s bundle size matters & how tools like Expo Atlas help you optimize performance, reduce app startup time & improve dependency management.
5%
faster startup time on FireTV and FireHD devices
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Article
2/11/2025

How to Profile Native Code in React Native Using Tracy

Learn how to profile your code to uncover performance bottlenecks and optimize speed using the right tools and relevant debugging strategies.
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Event
2/3/2025

React Native WebAssembly Release Walkthrough

Join us for a deep dive into Polygen: Callstack Incubator's breakthrough in React Native development!
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podcast
12/18/2024

React Native FastIO: Nitro-Powered Performance Boost

Listen to Mike Grabowski talk about React Native FastIO, a collection of primitives for working with data in React Native and its performance benefits.
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podcast
10/15/2024

Superfast Nitro Modules With Marc Rousavy

Even faster React Native apps? That's possible with Nitro Modules! Tune in to the conversation with their creator, Marc Rousavy.
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Article
8/29/2024

Optimizing Performance With The React Compiler

Learn how the new React Compiler optimizes performance and reduces development headaches with the power of automation.
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podcast
7/17/2024

What's New in Reassure 1.0

Find out how to monitor React and React Native performance better than ever before with Reassure's new features.
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Article
6/7/2024

The Inner Workings of GPU Rendering for 2D and 3D Graphics

Discover how GPU rendering powers 2D and 3D graphics. Learn about the GPU's role in creating vibrant visuals on your screen and the process behind it.
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