Background of the issue:
I'm trying to assign one page to another as a translation using WPML. I pressed the button 'Connect with translations' and there is a popup with a search bar with ID 'post_search' and class 'ui-autocomplete-input'.
Symptoms:
When I started typing the title of some page, Ajax starts to find these posts, but I have around 32000 posts in one of the versions, causing a super long timeout and my page crashes.
Questions:
Can I use something like at least 3 or 5 characters to input to start the Ajax searching?
Is there a part of code to be inserted into functions.php to solve this issue?
It appears this will require some custom work, which is outside the scope of our Support Policy. However, I will check with our developers to see if I can at least guide you in the right direction. After that, you can consider hiring a developer or a WPML contractor (https://wpml.org/contractors/).
I'm not certain if there's a no-coding alternative available, but I will look into it.
For now, I will keep the ticket assigned to myself until I have more information.