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Scroll wheel behavior differs significantly in new architecture (Windows App SDK) vs WinUI 3 Gallery app #14653

@chrisglein

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@chrisglein
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Discussed in #14642

Originally posted by Ferry-200 May 6, 2025
version:

{
  "dependencies": {
    "react": "19.0.0",
    "react-native": "0.78.0",
    "react-native-windows": "^0.78.0"
  }
}

I'm testing the React Native for Windows app using the new architecture (Windows App SDK). I noticed that the scroll wheel behavior is significantly different.

In the new architecture (Windows App SDK), scrolling with a mouse wheel feels much less responsive. The number of lines scrolled per wheel notch is considerably smaller compared to both the React Native Windows Gallery app and the official WinUI 3 Gallery app. As a result, scrolling through content feels sluggish and requires much more effort from the user.

This issue makes basic interaction in list views and scrollable content frustrating.

Any helps? Thanks!

5.6.mp4

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added
New ArchitectureBroad category for issues that apply to the RN "new" architecture of Turbo Modules + Fabric
Parity: WindowsRNW does not look or behave like non-RNW Windows
Workstream: Component ParityClose the parity gap between RNW and RN for core RN components and their supporting APIs.
on May 8, 2025
chrisglein

chrisglein commented on May 8, 2025

@chrisglein
MemberAuthor

Goal in the implementation was to match the numbers from WinUI, but clearly the behavior is different. Good catch. We'll look into it.

To investigate: Are there per-user mouse settings in effect here (as there are for mouse move speed)?

added theissue type on May 8, 2025
added this to the Backlog milestone on May 8, 2025
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Needs: Triage 🔍New issue that needs to be reviewed by the issue management team (label applied by bot)
on May 8, 2025
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Invalid Triagehttps://github.com/microsoft/react-native-windows/wiki/Triage-Process (label applied by bot)
on Jul 3, 2025
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Area: ScrollViewNew ArchitectureBroad category for issues that apply to the RN "new" architecture of Turbo Modules + FabricParity: WindowsRNW does not look or behave like non-RNW WindowsWorkstream: Component ParityClose the parity gap between RNW and RN for core RN components and their supporting APIs.buggood first issue

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      Scroll wheel behavior differs significantly in new architecture (Windows App SDK) vs WinUI 3 Gallery app · Issue #14653 · microsoft/react-native-windows