how to off ShaderEffectSource animation qt

[qunreallx]

I have a project on qt 6.6.3, opengl and quick are connected. Everything works correctly, the code I'll show below is part of my application. Closer to the point - when I load components, blur appears on the elements under it. And the fact is that when launched, an animation of blur manifestation is played, which should not be there. I did not find anything like this in the documentation

I would be glad to see the proposed alternatives or other ways of loading the element.

import QtQuick 6.6
import QtQuick.Controls 6.6
import QtQuick.Effects 6.6
import Qt5Compat.GraphicalEffects

Rectangle {
    id: company_page
    anchors.fill: parent
    color: "transparent" 


    Rectangle {
        id: leftObject
        width: parent.width * 0.4
        height: parent.height * 0.6
        color: "blue"
        radius: 10
        anchors.left: parent.left
        anchors.verticalCenter: parent.verticalCenter
        anchors.margins: 20
    }

    Rectangle {
        id: rightObject
        width: parent.width * 0.4
        height: parent.height * 0.6
        color: "green"
        radius: 10
        anchors.right: parent.right
        anchors.verticalCenter: parent.verticalCenter
        anchors.margins: 20
    }

    Rectangle {
        id: blurArea
        width: 500
        height: 400
        anchors.verticalCenter: parent.verticalCenter
        anchors.horizontalCenter: parent.horizontalCenter
        color: "transparent"
        border.color: "black"

        ShaderEffectSource {
            id: blurSource
            sourceItem: company_page
            sourceRect: Qt.rect(blurArea.x, blurArea.y, blurArea.width, blurArea.height)
            live: true
        }

        FastBlur {
            id: blurEffect
            anchors.fill: parent
            source: blurSource
            radius: 20 
            transparentBorder: true
        }
    }
}