Question All posts that have attachments are loaded for a very long time

I've found the cause. The Google recaptcha loads very long. If you block this script, the page loads normal.
If you have enabled script and css optimizer, disable this and try it again.

It's not a recaptcha. Disconnected it and it did not help

It's not a recaptcha. Disconnected it and it did not help

Have you emptied the cache after that? Empty the cache (also the cloud cache) and try again.

If you have enabled script and css optimizer, disable this and try it again.

Have you tried it?

Cache was cleaning. I do not use any optimizers

It's definitely not in the recapture, otherwise why topics without attachments are loaded normally?

It's definitely not in the recapture, otherwise why topics without attachments are loaded normally?

It loads very long (more than 10s), therefore I thought.

Please disable in the Kunena configuration (tab Frontend) the option "Allow rating", then empty the cache and try again.

rating is not enabled

This files are running on your page.
/components/com_kunena/template/canvas/assets/js/rating.js
/components/com_kunena/template/canvas/assets/js/krating.js
/components/com_kunena/template/canvas/assets/css/rating.css
Rename this files, empty the cache and try it again.

We're going the wrong way. I wrote that only threads with attachments are slow. Ratings do not have anything to do with it

We're going the wrong way. I wrote that only threads with attachments are slow. Ratings do not have anything to do with it

You want to find the error or not? I'm not going to invest my time if you don't test anything.

It's fact, when I block the rating.css, the page loads fast.
Also when is blocked the uikit.css from your Joomla template, then the page loads normal.
It seems, there are conflicts between some css or script files. But if you not want to test it, you will never find the cause.