Exporting a page in Safari is very slow and needs Page Ready Timeout to be increased when using the new PDF export

Steps to reproduce

1. Access the XWiki instance with Safari (tested with Safari 17) keeping the default PDF Export configuration
2. Go to Sandbox.WebHome
3. Click 'More Options' > 'Export' > 'PDF'
4. Click 'Export' > 'Export'

Expected results

The Sandbox.Webhome page is exported to PDF reasonably fast (app. 2-3 sec).

Actual results

The page is not exported with the default Timeout configuration. After 1 minute, the error message is displayed:

Failed to export as PDF: Timeout waiting for web page to be ready for print.

After increasing the Page Ready Timeout to 120 sec, the page was exported within app 80 sec on my side.

It is to be mentioned that using the old PDF Export (FOP), the page is exported almost instantly.