Very pixelated edges of text in PathText

import QtQuick
import QtQuick.ShapesWindow {
    width: 1024
    height: 320
    visible: true
    title: qsTr("Hello pixels!")
    Shape {
        ShapePath {
            strokeColor: "transparent"
            strokeWidth: 0
            fillColor: "black"
            PathText {
                font.family: "Helvetica";
                font.pixelSize: 100;
                text: "OMG, rough edges!" }
        }
    }
}