These videos are intended for beginner cubers who know how to solve in a couple minutes, and are interested in getting faster. If you understand the concepts and algorithms taught in these videos, then there is no reason why you shouldn't be averaging sub-40 seconds. Also, don't be too anxious to learn all three videos at once, because it might take you a week or so to get your head around each topic. I recommend watching them in order.
Stop Motion Animation is done by taking hundreds of snapshots, each only slightly different than the last, and stringing them together to make it look like a full motion video. This takes a lot of time, and you can see that each time I make one I am getting better and better at it. Please enjoy these videos, as they are a lot of work!