Qt scrolling lagginess test app

import QtQuick 1.1

Rectangle {
    width: 1024
    height: 600

    Flickable {
        anchors.fill: parent
        contentHeight: content.paintedHeight
        clip: true

        TextEdit {
            id: content

            width: parent.width
            readOnly: true
            font.pointSize: 22

            text: ""
        }
    }

    Component.onCompleted: {
        var array = [];
        for (var i = 0; i < 1000; i++) {
            array.push("adding another line " + i);
            if (Math.random() < 0.25)
                array.push("    just to be different we added this line");
        }
        content.text = array.join("\n");
    }
}