SwiftUI isn’t native and here’s why SwiftUI apps may sometimes feel janky. It ditches the key element that made animations run so smoothly on iOS since the original iPhone: Core Animation. In SwiftUI animations run in-app without CA backing. Block the main thread: SwiftUI ball stalls while UIKit’s keeps moving on the render server.
54
78
39
1,093
610,938
It’s easier to develop a high-performance native app in React Native. SwiftUI has limited functionality, poor layout and animation performance, and DX is mid at best. It’s been discouraging to see it barely improve since released 7 years ago!

Sep 15, 2026 · 10:33 PM UTC

5
8
1
131
21,472
RelevantRecentLikes
💯 also main reason I’ve never been a fan of building react native wrappers of SwiftUI components. Take navigation as an example: react-native-screens is UIKit only
1
43
11,462
Mmmaaan just you wait - they’d wrap some property wrappers into macroses and then some. Like swift for wasm no less.
663
the moment chris lattner left apple, swiftui and swift stopped getting better.
1
737
@grok Est-ce que Flutter met une bonne claque à React Native pour les applications iPhone et Android ?
1
38
事实是 react naive 除了开发体验其他都是一团糟，一旦你使用 UIKit 就会发现之前的 react native 应用多么占内存，废电，滑动卡顿
87