You can adjust the speed and delay of your animations by clicking down on the left/right edges of the timeline bar for your layer, then holding and dragging with your mouse to adjust the length of your animation and it's start/end point.

You can shift the location of your animation on the timeline by clicking down on the middle of the timeline bar for your layer, then holding and dragging with your mouse; moving it either left or right to change where it is placed in your timeline.