[Question] Performance issues when dragging scrollbar on large texts

[okmaybenot]

1. Great library, thanks.

2. Not sure if this is a bug or a feature request, but I noticed that the "Large Document (10,000+ Rows)" example program has huge performance issues when you start dragging the scrollbar (both in debug and release mode). Video below

https://github.com/user-attachments/assets/1cc14f83-9764-4dec-bfed-cf9b50d06ce5

At first I thought it was some implementation issue, but after a bit of research and experimentation I found that it seems to be a flutter [issue] (https://github.com/flutter/flutter/issues/75399). One of the comments suggested JK_fast_listview – I (partially) integrated it into appflowy-editor and the results seem promising, see the second video:

https://github.com/user-attachments/assets/b5b330c2-62c3-49da-9fe0-8375a57b140a

So my question is: is this a known problem? Are there any solutions? And if not, maybe this approach is worth considering?

Thank you! I'd like to hear your thoughts.

[StroeAndreX]

Hi! How did you manage to integrate JK_fast_listview into the AppFlowy editor? The performance improvement looks great, and I’d love to implement this solution as well.

Do you have any suggestions? Did you create your own fork?