There is a deliberate delay on the outboard ground spoilers in real (1,25s). The reason is that airliner wings (supercritical airfoils, or aft loaded wings) have a larger portion of the lift on the wing trailing end (further aft than a conventional wing). So when the spoilers deploy, center of lift moves significantly forward, this will cause an UP pitching moment that *can* result in a tail strike. So by putting in a delay, the nose will be on its way down when this happens and reduces the chances.