I want to use the asynchronous property of a Shape object

Ren.K

I'm having trouble adapting the asynchronous property of a Shape object.

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Shapes 1.15

Window {
    width: 300
    height: 300
    visible: true
    title: qsTr("Hello World")

    Shape {
        id: myShape
        anchors.fill: parent
        asynchronous: true

        ShapePath {
            id: myShapePath
            strokeWidth: 5
            strokeColor: "#00ff00"
            fillColor: "#00aa00"
            startX: 20
            startY: 20
            PathLine { x: 60; y: 150; }
            PathLine { x: 200; y: 200; }
            PathLine { x: 40; y: 250; }
            PathLine { x: 20; y: 20; }
        }
    }
}

When I run it, asynchronous is not working.

Therefore, I added the following to main.cpp.

    QSurfaceFormat format;
    format.setSamples(8);
    QSurfaceFormat::setDefaultFormat(format);

Then, the asynchronous setting worked.
However, this setting will be reflected in everything in the source.
(The setting works even if asynchronous is false.)

If possible, I want to set the presence or absence of asynchronous for each object, so
Is there a way to set it in the property?