[6.x] Updates page performance

[JonKaric]

Bug description

The update page is causing the main thread to become blocked.

Updater page - /cp/updater/statamic

Since this page loads every changelog since 3.0 the size of the page is big. I'm guessing the first long running task is the Inertia cycle for grabbing the content.

The second is the browser doing the layout calculations. The content-visibility css property could go a long way here as a quick fix but I'm guessing these need paginating or caching or somethin

How to reproduce

• Go to Chrome
• Go to any page in the control panel
• Go to the performance tab in devtools
• Click 'Record'
• Click the Updates page
• Look at the 'Main' accordion to see the main thread work

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You can resize the page while being in record mode to confirm if there are large layout tasks being done (in this case there is).

Logs

Environment

Application Name: Statamic
Laravel Version: 12.48.1
PHP Version: 8.4.15
Composer Version: 2.9.2
Environment: local
Debug Mode: ENABLED
Maintenance Mode: OFF
Timezone: UTC
Locale: en

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: file
Database: sqlite
Logs: stack / single
Mail: log
Queue: sync
Session: file

Storage
public/storage: NOT LINKED

Statamic
Addons: 0
Sites: 1
Stache Watcher: Enabled (auto)
Static Caching: Disabled
Version: 6.0.0-beta.4 Solo

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[adevade]

I'm having the same problem while scrolling on the Sites page, on a multisite with 6 sites.

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Thread in Discord for more context: https://discord.com/channels/489818810157891584/1465733372822425813

[jasonvarga]

Thanks for the issue. To avoid an issue that will be opened forever (we would want to improve performance all the time), I've renamed this so that its actionable. It corresponds to the updates page. This should be addressed by #13692.

The scroll performance on the sites page should be addressed by #13691.