Where can I configure how much Classifieds to show on the /classifieds page?

Hello,

I would like to know in which file is managed how much classifieds to show on the /classifieds page?

Seems like pagination doesn't work (perhaps due to a plugin conflict). Point is I need all plugins.. So can't miss one for this client.

So my plan is to (quick fix for my client) show all classifieds rather than just the first 10.

And than sort out some custom pagination option?
But the quickfix is the most important for now.

Please let me know.
Thank you!!

Kindest regards,
Steven