Adjust PathView transition time of decrementCurrentIndex, incrementCurrentIndex

[ephe]

Is it possible to change the transition time of
@Keys.onRightPressed: incrementCurrentIndex()
Keys.onLeftPressed: decrementCurrentIndex()@ ?

I've got the following PathView:
@import QtQuick 1.0

Rectangle {

id: pageControl

width: 360
height: 360

ListModel {
    id: appModel
    ListElement { pageColor: "blue" }
    ListElement { pageColor: "green" }
    ListElement { pageColor: "red" }
    ListElement { pageColor: "gray" }
    ListElement { pageColor: "black" }
    ListElement { pageColor: "purple" }
}

listModel: appModel

property ListModel listModel

Component {
    id: appDelegate

    Rectangle {
        smooth: true
        width: pageControl.width
        height: pageControl.height
        color: pageColor

    }
}

PathView {
    id: myPathView

    width: parent.width
    anchors.top: parent.top

    Keys.onRightPressed: incrementCurrentIndex()
    Keys.onLeftPressed: decrementCurrentIndex()

    focus: true
    interactive: true
    model: listModel
    delegate: appDelegate
    path: Path {
        startX: - pageControl.width * listModel.count / 2 + pageControl.width / 2
        startY: pageControl.height / 2
        PathLine {
            x: pageControl.width * listModel.count / 2 + pageControl.width / 2
            y: pageControl.height / 2
        }
    }
}

}@ (it's a short version of "this":http://www.developer.nokia.com/Community/Wiki/How_to_create_a_Page_Control_component_in_QML example)
In the wiki example, the flicking is quite slow and it can also be adjusted, but the key events are always quite fast. Is it possible to adjust them?

Thank you!