It already is working correctly.I need support for it to get it working correctly again like yesterday
Nothing has changed with regards to that portion of the code since the first release of the portal page.
It correctly respects node, user group, and user permissions, as it should.
As I said earlier, aggregating all of the content from the whole forum onto a single page is always going to have an impact due to the permission checks.
That is why the archive page was created - which lists all previously featured threads - and the portal page is recommended to have a lower number of active featured threads.
I can't specifically recommend anyone as I am not familiar with the abilities and work of any developers.