@marcocolzani. Thanks for posting. What display method are you using? There are 4 display methods available: Table, List, Paginated, and Explorer. Page Limit and Show Limit only apply to “Paginated” Display Method. So, if you have it on any other type, it won’t show (Table is the default). You have to select Paginated Display Method in the “Basic Details” tab of the Profile.
Let me know if this helps. Also, you can also link to your webpage for me to see your listing.