Official comment

Hello Alexandr,
While we do not have this option built into our Plugin natively you can add code to your html to ensure the animation will not play until it is in view. We have some tips in the article below for how to do this depending on how your code is designed:
https://support.magplus.com/hc/en-us/articles/203810608
Regards,
Mike Rettew
Mag+ Support Team