ListView has drawing problems with large models

ListView {
        id: listView
        anchors.fill: parent
        model: 57000000

        delegate: Text {
            text: model.index
            color: ListView.isCurrentItem ? "blue" : "black"
        }

        property int pageSize: 1000
        Keys.onPressed: {
            if (event.key == Qt.Key_Home) {
                currentIndex = 0
                positionViewAtBeginning();
            } else if(event.key == Qt.Key_End) {
                currentIndex = count
                positionViewAtEnd();
            } else if(event.key == Qt.Key_PageUp) {
                currentIndex = currentIndex - pageSize;
                listView.moveToCurrentIndex();
            } else if(event.key == Qt.Key_PageDown) {
                currentIndex = currentIndex + pageSize;
                listView.moveToCurrentIndex();
            }
        }

        function moveToCurrentIndex(){
            positionViewAtIndex(currentIndex, ListView.Center);
        }

        focus: true
        MouseArea {
            anchors.fill: parent
            onClicked: {
                listView.currentIndex = 2396748
                listView.moveToCurrentIndex();
            }
        }
    }