Scroll speed is faster when FlatList is inverted

[BeeMargarida]

Is there an existing issue for this?

• I have searched the existing issues

Describe the issue

When the inverted prop is true for the FlatList, the scroll speed is faster.
This can be checked in the Lists example: https://p9t5cp.sse.codesandbox.io/lists

It might be related to the logic in this.invertedWheelEventHandler, but looking at the code there's nothing that stands out as wrong.

Expected behavior

Scroll speed should remain the same if the list is inverted.

Steps to reproduce

1. Go to https://p9t5cp.sse.codesandbox.io/lists
2. Scroll with inverted disabled and note the scroll speed (with the trackpad or with the scroll wheel)
3. Enable the inverted prop
4. Check that the scroll is faster

Test case

https://p9t5cp.sse.codesandbox.io/lists

Additional comments

This issue was first spotted here.

[necolas]

I think all issues related to Animated and FlatList should be directed towards this RN issue facebook/react-native#35263

Once RNWeb can import those modules from npm, they can be kept in sync across native and web, and any issues can be managed out of the RN repo only. This should make it a lot simpler going forward.