Animation is very slow on IOS devices when render mode is set to SVG, please help

Hi,

I’m using an animations on a web site created by someone I can’t reach to discuss this issue. His animations are playing smoothly on PC and Android devices but veeery slow, 1 fps per second on IOS devices.

Here’s the reference file:

https://barkadventcalendarstory.com/includes/pages/start/animations/01_test.json

I’m using bodymovin JS to render animations:

https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.7.1/lottie.js

I’m also using Glaxnimate software to edit JSON animations. For some reason when I import/export in this software then the animation is playing smoothly again, but unfortunately some transitions/effects are messed up and editing them one by one to make it look like original - is just nightmare!!

Can anyone test it and tell me how to optimize it?

Thanks a lot!!!