WPF窗口设置全屏显示以及加载过程中卡顿

在<Window>标签绑定事件SourceInitialized="Window_SourceInitialized"

//初始化全屏
private void Window_SourceInitialized(object sender, EventArgs e)
{
    this.Topmost = true;
    this.Left = 0.0;
    this.Top = 0.0;
    this.Width = System.Windows.SystemParameters.PrimaryScreenWidth;
    this.Height = System.Windows.SystemParameters.PrimaryScreenHeight;
    this.WindowState = System.Windows.WindowState.Normal;
    this.WindowStyle = System.Windows.WindowStyle.None;
    this.ResizeMode = System.Windows.ResizeMode.NoResize;
}