High CPU usage when viewing #matrix:matrix.org

[TellowKrinkle]

Steps to reproduce

1. Log into an account and join #matrix:matrix.org
2. Navigate to https://app.element.io/#/room/#matrix:matrix.org
3. Look at the browser's CPU usage

Outcome

What did you expect?

After loading, CPU usage goes down to negligible amounts

What happened instead?

It's pinned at 100% of one core

Here's a profile from Firefox

Operating system

macOS 15.2（24C101）

Browser information

Firefox 134.0b10

URL for webapp

app.element.io

Application version

Element version: 1.11.87 Crypto version: Rust SDK 0.7.2 (517d99b), Vodozemac 0.7.0

Homeserver

matrix.org

Will you send logs?

Yes