Ion slide box pager: show only 5-6 balls

Hi all, I have a slidebox that it’s update via ng-repeat and $ionicSlideBoxDelegate.update();
Each 8 swipe left (slide next) I get more items via ajax and update slidebox with these new items.
And all works (great).

What is wrong is the pager: the first time there are 10 “points”, at the first update these points grow to 20, at the 3rd update grow to 30 and so on. Ok, this is correct because “slides” grow, but how can I show only 10 “points” with the current in the middle (5th position). For the moment I have disabled this pager.

Thanks.

M.