Flutter laggy navigation

Question

I have this auto platform detect navigation function but when I use it for the iPhone on release mode it lags but when I make it only with MaterialPageRoute it doesn't lag at all on iOS.

static navigateTo({BuildContext context, Widget w, bool fullscreenDialog}) {
    Platform.isIOS
    ? Navigator.push(context, CupertinoPageRoute(builder: (context) => w, fullscreenDialog: fullscreenDialog))
    : Navigator.push(context, MaterialPageRoute(builder: (context) => w, fullscreenDialog: fullscreenDialog));
}