[makeitdouble]

It isn't a hard coded timer, it's the "loading" animation you see while an app or a page bootstraps a new view. In macos it would be the equivalent of the spinning beach ball.

In iOS I think there is just no way to disable all the animations, while android gives you that switch that is quite literal.

[alwillis]

You might want to check the accessibility features of iOS: https://www.apple.com/accessibility/