CPU load optimization in iOS is very poor

[mitaxe]

Description
When animation is running in Xcode I see CPU jumps from 5-10% to 70-80%. And it doesn't depend on animation. If animation is running every one second I also see the same CPU load. Sometimes it jumps to 90%.

In Android everything is good. The CPU load is about 20-30%, sometimes even less. (10-15%)

Expected behavior:
CPU load optimization in iOS

Actual behavior:
The CPU load optimization in iOS is very poor.
The CPU load in Android is OK.

Versions
iOS version 13.2.

"react-native": "0.61.2",
"lottie-ios": "3.1.5",
"lottie-react-native": "^3.3.1",

[buba447]

This is a duplicate of #895
Closing this issue to reduce noise and focus discussion to a single issue.