Animations with KeyboardAwareScrollView have poor performance on iOS release

[Moreno97]

Describe the bug
Animations with KeyboardAwareScrollView have poor performance on iOS release.

Code snippet

    <>
      <KeyboardAwareScrollView
        testID="keyboard-aware-scroll-view"
        keyboardShouldPersistTaps="handled"
        contentContainerStyle={{
               flexGrow: 1,
               padding: 16,
               backgroundColor: 'white',
        }}
        keyboardDismissMode="on-drag"
      >
      <View style={{ flex: 1 }}
       ...
      </View>
    </>

To Reproduce
Steps to reproduce the behavior:
Have an input and focus. I we have some buttons at the bottom, when placing at the top, animations are laggy.

Expected behavior
Animations shouldn´t be laggy and perfomance as 60/120 fps depending on device.

Screenshots

Release:

RPReplay_Final1713954733.MP4

Debug:

CleanShot.2024-04-24.at.12.59.01.mp4

Smartphone (please complete the following information):

• Device: iPhone 14 Pro (seems to happen on all iOS devices)
• OS: iOS 17.4.1
• RN version: 0.73.5
• RN architecture: Old
• JS engine: Hermes
• Library version: 1.11.6

Additional context
Seems to happen only on iOS devices and release flavour. On debug, everything is working fine 👍🏻 .

[kirillzyusko]

Hello @Moreno97

Would you mind to attach debug video as well so that I can compare two of them and have a better understanding of where performance drop happens?

[Moreno97]

Hello @Moreno97

Would you mind to attach debug video as well so that I can compare two of them and have a better understanding of where performance drop happens?

Sure, is attached now 👍🏻 , thanks. Seems that is not noticiable on the video, but it works way better on Simulator than Release flavour on real device.

[kirillzyusko]

Sure, is attached now 👍🏻 , thanks. Seems that is not noticiable on the video, but it works way better on Simulator than Release flavour on real device.

Interesting, I'll have a look into it.

But may I ask you to try to comment out this line and see if it improves situation?

[Moreno97]

Sure, is attached now 👍🏻 , thanks. Seems that is not noticiable on the video, but it works way better on Simulator than Release flavour on real device.

Interesting, I'll have a look into it.

But may I ask you to try to comment out this line and see if it improves situation?

I can try it building the app release on my device. I'll try it and update as soon as I can.
Thanks 🙂.

[kirillzyusko]

@Moreno97 potentially it can be fixed in #412

Can you try to install a library from latest main and check if it works better or not? 👀

[Moreno97]

@Moreno97 potentially it can be fixed in #412

Can you try to install a library from latest main and check if it works better or not? 👀

Hello! I'll try as soon as possible.
Thanks! And KUDOS!

[Moreno97]

@kirillzyusko installing the library from main seems to be working better on real device!! At least, animations are less laggy and now are "pretty almost native and at full speed".
Thanks!! We can close the issue <3.

[kirillzyusko]

@Moreno97 yoohoo 🎉 Thank you for the report and testing! 😊

There is still some room for further improvements, so I'm going to make them even better/smoother/precise, but I'll do it slightly later 👀