Heavy CPU usage on DOM visibility changes

[qsantos]

Steps To Reproduce

1. Go to https://news.ycombinator.com/item?id=41558554#41562094
2. Click on the [-] / [253 more] link repeatedly in quick succession
3. Watch the CPU usage of the firefox process spike to 50%, or listen to the fans spinning up

Expected Result

<1% CPU usage

Actual Result

~50% CPU usage

Screenshots or Videos

Additional Context

This is definitely a very minor and likely niche issue, but I report it in case it is simple to fix, or if it could be related to more significant issues on other sites for regular users.

I am the author of a tiny browser extension to navigate Hacker News more efficiently (ViHN). This makes me notice even slight performance issues when folding comments threads. However, the issue is not coming from ViHN, since:

1. With Bitwarden disabled, I see no CPU spike, even when toggle threads using ViHN or with by clicking on the link
2. With ViHN disabled (and Bitwarden enabled), I see a CPU spike by clicking on the link repeatedly

Anyway, I am not expecting a fix for this anytime soon, or at all, since it is such a minor thing. I only ever had a few minor issues with your extension, so keep up the good work!

Operating System

Linux

Operating System Version

Debian 12

Web Browser

Firefox

Browser Version

130.0.1

Build Version

2024.9.0

Issue Tracking Info

• [X] I understand that work is tracked outside of Github. A PR will be linked to this issue should one be opened to address it, but Bitwarden doesn't use fields like "assigned", "milestone", or "project" to track progress.

[cagonzalezcs]

@qsantos

Thank you for this bug report. This is a duplicate report and we have some improvements for this problem present within main that will be released in the near future. For more details please review this comment - https://github.com/bitwarden/clients/issues/11077#issuecomment-2353414875

Closing this thread for now.

[qsantos]

I had found #11077, thanks for deduplicating!