Page Load animation play In infinite scroll

Hi beautiful Peoples!

I use finsweet CMS library to load item from CMS , its working fine, but when new item load into page the page load animation play, and I just want to play the animation on first time when page load. Any ideas how to handle this?
Here is link of publish website…


Here is my site Read-Only: LINK
(how to share your site Read-Only link)