Steps to reproduce the issue

On a website with a lot of articles (in my case >88000)

Go to Smart Seach, Index
Either do:

• Index, the index process takes a few hours but works, in the end there is no success message because the optimise process is run at the end times out (in the background)

• Optimise, the process times out (e.g. 504 Gateway Time-out)

Expected result

Optimise works

Actual result

Optimise times out

System information (as much as possible)

PHP 8.2 Joomla 5.2.1
max_execution_time set to 720 (maximum)

Additional comments

I'm working on a CLI solution with new queries (tests show that the query in question runs 32 minutes...)