Netlify-cms: Editing peformance is rough for large lists

[erquhart]

Describe the bug

When authoring in a large list, there are long pauses between keystrokes.

To Reproduce

Go to https://www.netlifycms.org/admin/#/collections/updates/entries/releases

Edit one of the list items

Expected behavior

Updates should be snappy.

Applicable Versions:
CMS 2.10.31

Additional context

This is a long known issue, just needed to be documented. shouldComponentUpdate is currently set to always update on lists because the list widget doesn't know if it's children require updates from whatever state change is coming down.

I'm certain we can be smarter about this logic. If we can get a quick easy win, let's at least prioritize it. If it's likely to be a bigger lift, let's just get some thoughts down and prioritize later.

An improvement here will likely improve perf across the editor, or at least pave the way for general perf improvement.

[ottozaiser]

Hello! Do you guys recommend a workaround about this issue?

[lupelius]

this is still happening, neither this one or #2009 seems to be fixed, my project needs a massive refactor for working around this putting each entry in its own file, when can we expect a fix please?

[magomimmo]

Hi @erezrokah,
is there any news on this issue? We're very close to deliver the project to the client, but this issue is so severe that will stop the delivery. If I remember well you're working on it.

My best

[erezrokah]

Hi @magomimmo, no progress so far. I had to shift focus to other issues.

[magomimmo]

Thanks @erezrokah, we'll see what we can do about it. Eventually we'll ask you some suggestions on the best way you think it's needed to fix it and what are the minimum requirement from you're side.