Hi Jamie, those are beautiful pictures you always take such great pictures! I love the mixture of the Kenmore agitator and the Whirlpool cap! Congratulations on getting the machine running.
I don't think that the machine should switch to low speed during the Normal cycle at any time. Are you sure about that?
As for the sluggish spin, there is a chance that the transmission is not aligned properly inside the spin tube. I have instructions to fix that, I will find them for you and post them tonight.