Desktop simple viewer

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C#

In order to develop an app remote desktop WP7, I started to with a desktop simple viewer and it works but the problem that not show all actions that I do in Server side, that's video in YouTube can show you my problem
http://www.youtube.com/watch?v=3q-FumfYsPQ&feature=youtu.be
I use socket connection and I decode and encode my data (images). this my code in WP7 client side

void Conncet(string IP_Address) {

        client_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        SocketAsyncEventArgs socketEventArg = new SocketAsyncEventArgs()
        {
            RemoteEndPoint = new IPEndPoint(IPAddress.Parse(IP_Address), 4532)
        };
        socketEventArg.Completed += OnConncetCompleted;
        client_socket.ConnectAsync(socketEventArg);
    }
void StartReceiving()
        {
            byte[] response = new byte[131072];
            SocketAsyncEventArgs socketEventArg = new SocketAsyncEventArgs();
            socketEventArg.Completed += OnReceiveCompleted;
            socketEventArg.SetBuffer(response, 0, response.Length);
            client_socket.ReceiveAsync(socketEventArg);
        }

private void ViewReceivedImage(byte[] buffer) { try { MemoryStream ms = new MemoryStream(buffer); BitmapImage bi = new BitmapImage(); bi.SetSource(ms); MyImage.Source = bi; ms.Close(); } catch (Exception) { } finally { StartReceiving(); } }

this my code in Server side (PC) sending images

void StartSending() { while (!stop)

            try
            {
                Image oldimage = scr.Get_Resized_Image(wToCompare, hToCompare, scr.GetDesktopBitmapBytes());
                //Thread.Sleep(1);
                Image newimage = scr.Get_Resized_Image(wToCompare, hToCompare, scr.GetDesktopBitmapBytes());

                byte[] buffer = scr.GetDesktop_ResizedBytes(wToSend, hToSend);

                float difference = scr.difference(newimage, oldimage);


                if (difference >= 1)
                {

                    SenderSocket.Send(buffer);
                }


            }
            catch (Exception) { }
    }

My question is how can I make the send and receive fast to show the PC screen in WP7 in +/- real time.