Server Action Folder List : Paging, Sort and Search

I have an SPA page that looks at a file directory and returns a list of files using a Server Action Folder List. This works well, but there are thousands of files.

This list isn’t created as part of a Paged Query so how can I do Paging, Sort and Search on this list, the same as I can with my other Queried pages?

Also, I can see folders inside this directory but how do I see files in those sub-folders?

Current set-up : SPA Pages, Windows 10, MySQL, PHP