You can use this function to update the speed of the view camera within the room. You give the unique camera ID value (as returned by the different camera_create functions) and then give the x and y (horizontal and vertical) speed that it should move when set to follow a given instance. The speed is calculated as pixels per step and can be set to "-1" to make the camera move instantly, but if the camera is not set to follow any instance then the values set here will have no visible effect.
camera_set_view_speed(camera_id, xspeed, yspeed)
Argument Description camera_id The unique camera ID value returned when you created the camera. xspeed The speed (number of pixels per game frame) that the view should move on the horizontal (x) axis yspeed The speed (number of pixels per game frame) that the view should move on the vertical (y) axis
camera_set_view_speed(view_camera, 5, 5);
The above code will set the view camera speed for the camera assigned to view port.