wpf性能问题

interface IUIElement : IDisposable
{
/// <summary>
/// 注册事件
/// </summary>
void EventsRegistion();

/// <summary>
/// 解除事件注册
/// </summary>
void EventDeregistration();
}

DispatcherTimer GCTimer = new DispatcherTimer();
public MainWindow()
{
InitializeComponent();
this.GCTimer.Interval = TimeSpan.FromMinutes(10); //垃圾释放定时器 我定为每十分钟释放一次，大家可根据需要修改

　　this.GCTimer.start();

this.EventsRegistion();    // 注册事件
}

public void EventsRegistion()
{
this.GCTimer.Tick += new EventHandler(OnGarbageCollection);
}

public void EventDeregistration()
{
this.GCTimer.Tick -= new EventHandler(OnGarbageCollection);
}

void OnGarbageCollection(object sender, EventArgs e)
{
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
}