# SwiftUI Performance Is Not About Views. It Is About Diffing

Page: https://stenobird.com/podcast/programming-tech-brief-by-hackernoon-6364125/swiftui-performance-is-not-about-views-it-is-about-diffing
Text version: https://stenobird.com/podcast/programming-tech-brief-by-hackernoon-6364125/swiftui-performance-is-not-about-views-it-is-about-diffing.md
Podcast: [Programming Tech Brief By HackerNoon](https://stenobird.com/podcast/programming-tech-brief-by-hackernoon-6364125)
Published: 2026-05-25T16:00:40+00:00
Episode link: https://share.transistor.fm/s/c74442b4
Audio file: https://media.transistor.fm/c74442b4/d058dc3f.mp3
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JSON: https://stenobird.com/v1/public/podcasts/programming-tech-brief-by-hackernoon-6364125/episodes/swiftui-performance-is-not-about-views-it-is-about-diffing
Duration seconds: 741

## Resource

This story was originally published on HackerNoon at: https://hackernoon.com/swiftui-performance-is-not-about-views-it-is-about-diffing . Your SwiftUI app may not be slow because of too many views — it may be slow because SwiftUI cannot clearly diff what changed. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #swiftui , #ios-app-development , #swiftui-performance , #swiftui-diffing , #swiftui-rendering , #swiftui-architecture , #swift-macros , #xcode-instruments , and more. This story was written by: @element . Learn more about this writer by checking @element's about page, and for more stories, please visit hackernoon.com . SwiftUI performance issues often come from poor diffing, not from SwiftUI itself. Closures, reference-backed models, and large view bodies can make SwiftUI re-render more than necessary. The fix is to make rendering inputs explicit, use smaller diffable view components, and treat Equatable as an architectural tool, not just a micro-optimization.

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## Transcript

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