Performance of updating a checkbox in an issue description is very poor

[llimllib]

Select Topic Area

Bug

Feature Area

Issues

Body

To reproduce:

• Create an issue and add 100 checkboxes to the body
• Check one of the checkboxes
• Watch the UI go disabled (in my case for more than half a second) as it waits for a server render

Waiting 500ms for the UI to become responsive again is very painful:

To compare against a good UX, go to an issue in linear.app and do the same thing; note that you can freely check and uncheck boxes in your issue description without having to wait for a server render

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• I have read the above statement and can confirm my post is relevant to the GitHub feature areas Issues and/or Projects.

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[ehmatthes]

I've noticed this after the recent Issues update as well. Here's a clip of what it's like trying to check off a few tasks in a relatively modest task list:

gh_issue_reload.mp4

This used to be three quick clicks. Now it's click, wait, scroll, find next box, click, wait, scroll, find next box, click, wait, scroll...

[realChakrawarti]

I have a similar issue but when checkboxes themselves are inside a The Disclosure Summary element (<details>-<summary>)

This closes the entire comment section on an update. That's was really unexpected.

[gmgonzal]

Just posted a similar issue with task list updates within distinct blocks, perhaps we can get all these task list issues resolved as part of the same update :)

https://github.com/orgs/community/discussions/150783