Qml for ios application is too slow - c++

Question

I am developing an application with Qt and qml and I am building it for OSX, iOS and Android. The application contains a StackView which has only three pages. In the second page I have a five MenuItems and five Dialogs.
While this very simple application has an excellent performance when runs on OSX and Android, it delays up to 3-4 seconds to show the second page on iOS.
I have already tried "Qml Profiler" and I have found out that the delay happens during the creation of the qml file that describes the second page.
I have also tried "Qt Quick Compiler" (Commercial Qt) with no significant difference.
main.qml
import QtQuick 2.4
import QtQuick.Window 2.2
import QtQuick.Controls 1.4
ApplicationWindow {
id: app
title: "MyApp"
width: 1024
height: 768
visible: true
StackView {
id: stackView
anchors.fill: parent
initialItem: firstPage
}
Component {
id:firstPage
FirstPage {
}
}
}
firstPage.qml
import QtQuick 2.3
import QtQuick.Controls 1.4
import QtQuick.Dialogs 1.2
Item {
id:firstPage
signal collectionClicked(string name)
focus: true
objectName: "firstPage"
Rectangle {
anchors.fill: parent
color: "blue"
}
MouseArea {
anchors.fill: parent
onClicked: {
stackView.push(Qt.resolvedUrl("SecondPage.qml"))
}
}
}
SecondPage.qml
import QtQuick 2.3
import QtQuick.Window 2.2
import QtQuick.Controls 1.4
import QtQuick.Dialogs 1.2
Item {
id: itemsPage
signal itemClicked()
Rectangle {
id: myRectangle
anchors.fill: parent
color: "red"
Dialog {
id: dialog1
height: 200
width: 300
//onAccepted: ;
}
Dialog {
id: dialog2
height: 200
width: 300
//onAccepted: ;
}
Dialog {
id: dialog3
height: 200
width: 300
//onAccepted: ;
}
Dialog {
id: dialog4
height: 200
width: 300
//onAccepted: ;
}
Dialog {
id: dialog5
height: 200
width: 300
//onAccepted: ;
}
Menu {
id: myMenu
title: "Menu"
MenuItem {
text: "Test"
//onTriggered: ;
}
MenuItem {
text: "Test"
//onTriggered: ;
}
MenuItem {
text: "Test"
//onTriggered: ;
}
MenuItem {
text: "Test"
//onTriggered: ;
}
MenuItem {
text: "Test"
//onTriggered: ;
}
}
}
MouseArea {
anchors.fill: parent
onClicked: stackView.push(Qt.resolvedUrl("ThirdPage.qml"));
}
}
ThirdPage.qml
import QtQuick 2.0
Item {
Rectangle {
anchors.fill: parent
color: "green"
Text {
text: "third page"
}
}
}
I have tried for such a long to find a solution. And I think that it is impossible that there is nobody that has ever tried to make a simple qml application for iOS and faced what I have faced.
Thank you,
Michael