Performance issue when switching between localizations on entry publish form

[JoeriE]

Bug description

I upgraded to the latest version of Statamic and everything in the control panel runs smooth and fast except when I want to switch the sites on a entry. It takes more than 10 seconds to load the site in a different language. Is this a known issue? it doesn't really depend on the amount content, we've tested it with no content and a lot of content on the page.

Also 'Unsaved changes' is immediately appearing without changing anything.

How to reproduce

It mainly happens on production / staging server, locally everything runs fast most of the time. This one specific project is really slow, but it has the same hosting settings as other Statamic projects that run fast.

Logs

No response

Environment

Environment
Application Name:
Laravel Version: 11.15.0
PHP Version: 8.2.21
Composer Version: 2.7.7
Environment: staging
Debug Mode: ENABLED
URL: 
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: mysql
Logs: stack / single
Mail: smtp
Queue: sync
Session: file

Statamic
Addons: 3
Sites: 4 (Nederlands, English, Français, Portuguese)
Stache Watcher: Disabled
Static Caching: full
Version: 5.13.0 PRO

Statamic Addons
aerni/advanced-seo: 2.6.0
stillat/relationships: 2.2.1
swiftmade/statamic-clear-assets: 3.0.0

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[duncanmcclean]

It mainly happens on production / staging server, locally everything runs fast most of the time. This one specific project is really slow, but it has the same hosting settings as other Statamic projects that run fast.

Hmm, if you can't replicate the issue locally, I wonder if it could be a server config issue, rather than being a Statamic issue. 🤔

Do you have any other multi-sites on the same hosting/server that are experiencing the same issue, or is it just this one?

Can you try uninstalling the addons on staging, to rule them out as being an issue?

[JoeriE]

@duncanmcclean We tried this and it's way faster when uninstalling all addons. It appears that the Advanced SEO plugins causes the slowdown. It's strange because we use this add-on for every project and don't have the issue anywhere else.

[duncanmcclean]

Thanks for testing!

In that case, it might be worth getting in touch with the developer of the Advanced SEO addon. They may be able to figure out what's causing the slowdown.

Since this seems to be an addon issue, I'm going to close this issue.