1. A method comprising: at a computer system with a display and a gaze detection device: preparing to display, on the display, a display event associated with a target region of the display; obtaining, from the gaze detection device, user gaze information including a gaze region on the display; comparing the gaze region and the target region; after comparing the gaze region and the target region: in accordance with a determination that the gaze region and the target region do not overlap, delaying display of the display event on the display; in accordance with a determination that the gaze region and the target region do overlap and that the size of the overlapping area is less than the threshold size, delaying display of the display event on the display; and in accordance with a determination that the gaze region and the target region do overlap and that the size of the overlapping area is greater than the threshold size, executing the display event on the display without the delay.