Systems and methods are described for adjusting streaming of screen data from a server to a client based on visibility of the window in which the screen data is presented on the client. Visibility of a window in the graphical user interface (GUI) can be monitored, for example by detecting when the window is minimized or obscured by other objects in the GUI, and the streaming of screen data to the window can be dynamically adjusted based on the window visibility. When the window is minimized or fully obscured, the streaming of screen data can be stopped. When the window is partially obscured, the streaming can be modified such as by decreasing the frame rate.