TYPO3 Core

Hi,

we face another issue with the latest security update in a large university project (with a lot of files in fileadmin).
When an editor (or admin) opens a textmedia element in backend, the edit view is shown. Switching to tab Images shows the related images to this content element.
If you click on the i-icon (info) of the sys_file_reference record, a popup is shown.

In this project it takes more then 40 seconds to show the file information and the preview image. I could reproduce this behaviour in a smaller project but with better times (about 10 seconds). In a naked installation I don't see a difference (with only a few images in fileadmin).

I also tested to remove the fileadmin/.htaccess file - but this does not help. Rolling back to 10.4.9 increases performance from 40s to 2s.

Any hints how to handle this?

Greetings, ALex

BTW: The effected url/script in the AJAX call is /typo3/index.php?route=%2Frecord%2Finfo&token=abc&table=_FILE&uid=123