1. A method, comprising: at a computing device with a display: displaying, on the display, an application with a completion status indicator, wherein: the completion status indicator is a bar that visually shows a completion status of a task being performed by the application, wherein the task is loading a web page; and one end of the bar moves towards a position that indicates completion of the task; and, prior to completing the task: while the one end of the bar is moving at a first rate towards the position that indicates completion of the task, determining whether a threshold has been reached at which the completion status indicator is configured to indicate that the task has been completed, even though the task is not completed; and, in response to determining that the threshold has been reached at which the completion status indicator is configured to indicate that the task has been completed, even though the task is not completed, moving the one end of the bar at a second rate, greater than the first rate, from its current position towards the position that indicates completion of the task.