[Android] Slow momentum scrolling causes jitter and lag with interpolate in Reanimated 3.17.4

[ddeveloper2023]

Description

When using react-native-reanimated version ~3.17.4 with slow swipe gestures, the animation stutters or lags during momentum scrolling. This issue occurs on real Android devices (tested on Android 13), in the latest Expo SDK 53. Occurs on both dev mode and preview builds

The stuttering becomes very noticeable when releasing the scroll after a slow swipe. The animation, driven by interpolate, appears to skip frames or lag instead of transitioning smoothly.

Steps to reproduce

Open the Snack
Run on a real Android device
Slowly swipe left or right, then release
Observe jitter or lag during the momentum scroll / release phase

Snack or a link to a repository

https://snack.expo.dev/@developernew2023/supportive-green-cheese

Reanimated version

3.17.4

React Native version

0.79

Platforms

Android

JavaScript runtime

None

Workflow

Expo Dev Client

Architecture

Fabric (New Architecture)

Build type

Release app & dev bundle

Device

Real device

Host machine

Linux

Device model

Android 13

Acknowledgements

Yes

[ddeveloper2023]

Screen_Recording_20250625_145431.mp4

[MatiPl01]

Hey @ddeveloper2023!

I've just tested your issue reproduction example and it seems that this PR fixes your issue. It hasn't been released yet but this fix should be available in the next stable release of reanimated (likely in the next week).

I have to mention that this fix starts working since react-native 0.80, so you would have to bump react-native first. If you want to use this fix now, please bump RN and reanimated to 3.18.0 and apply the following patch:

react-native-reanimated+3.18.0.patch

I also created a repo comparing how it works without and with the patch:

• https://github.com/MatiPl01/reanimated-android-scroll-jitter-fix-repro

Without patch (main branch)	With patch (fixed branch)
Screen.Recording.2025-06-25.at.17.30.19.mp4	Screen.Recording.2025-06-25.at.17.40.23.mp4