Episode
SwiftUI Performance Is Not About Views. It Is About Diffing
- Published
- May 25, 2026
- Duration seconds
- 741
- Processing state
not_requested- Canonical source
- https://share.transistor.fm/s/c74442b4
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Summary
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.