The invention generally relates to devices and methods for displaying a sub-section of a virtual model. In certain aspects, methods herein involve determining a portion of a virtual model within a user's field of view, determining a maximum load value that can be accommodated by the device, and displaying a sub-section of the virtual model based upon the portion that is within the user's field of view and the maximum load value accommodated by the device. In other aspects, devices herein include hardware and software that cause a CPU of the device to determine a portion of a virtual model within a user's field of view, determine a maximum load value that can be accommodated by the device, and display a sub-section of the virtual model based upon the portion that is within the user's field of view and the maximum load value accommodated by the device.