Dart expert? Scroll up is not working properly

I've been looking everywhere I don't know what's happening but when I run this code, the scroll up is not working anymore.
Basically I have a kind of instagram feed with videos. I use this widget to display the videos. If I scroll down on the feed, it works, but as soon as I scroll up it get jerky.

class CustomVidPlayerCopy extends StatefulWidget {
  CustomVidPlayerCopy({
    this.width,
    this.height,
    required this.videoPath,
  });

  final double? width;
  final double? height;
  final String videoPath;

  @override
  _CustomVidPlayerState createState() => _CustomVidPlayerState();
}

class _CustomVidPlayerState extends State<CustomVidPlayerCopy> {
  late VideoPlayerController _videoPlayerController;
  late ChewieController _chewieController;
  late Future<void> _initializeVideoPlayerFuture;

  @override
  void initState() {
    super.initState();
    _videoPlayerController = VideoPlayerController.network(widget.videoPath);
    _initializeVideoPlayerFuture = _videoPlayerController.initialize();
    _videoPlayerController.setVolume(0.0);
  }

  @override
  void dispose() {
    _videoPlayerController.dispose();
    _chewieController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder(
      future: _initializeVideoPlayerFuture,
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.done) {
          _chewieController = ChewieController(
            videoPlayerController: _videoPlayerController,
            aspectRatio: _videoPlayerController.value.aspectRatio,
            autoInitialize: true,
            looping: true,
            showControls: false,
            autoPlay: true,
          );

          return Container(
            child: AspectRatio(
              aspectRatio: _videoPlayerController.value.aspectRatio,
              child: Stack(
                children: [
                  // Display the video using Chewie
                  Chewie(
                    controller: _chewieController,
                  ),
                  GestureDetector(
                    behavior: HitTestBehavior.opaque,
                  ),
                ],
              ),
            ),
          );
        } else {
          return Center(
            child: CircularProgressIndicator(),
          );
        }
      },
    );
  }
}