Lottie file lags in iphone

I’ve noticed that the Lottie file lags only in iPhone and it starts lagging from the middle of the animation.
It has no issues when I preview it in the Lottiefiles previewer. Everything is as far as I understand built right.
What can be the problem?

Thanks in advance.

Hi @maya1
Could you check if your animation contains any unsupported features on iOS:

Hi, thank you for the answer. All the features are supported from what I see. That is why I’m so confused…

It is laggy in Lottie 4.0.1 but in Lottie 3.3.0 it plays smooth.
Anyone has a clue?

Thanks in advance.