Your company is main office and a branch office are connected by a slow WAN link. All servers are located in the main office run Windows Server 2008 R2. All client computers run Windows 7. You install an application on a Remote Desktop Session Host (RD Session Host) server. Users in the branch office experience slow performance when accessing the application through Remote Desktop. You need to minimize the bandwidth utilization to the RD Session Host server. What should you do？（）