Isn't that kind of the joy of it? Carousels, in my opinion, are slow because they are classic rides that just make you feel good, and dare I say, nostalgic. Especially because it's from KI, and is the oldest ride in the park.
Eiffel Tower.
It's structure is both too high and too uneasy-feeling for me to conquer again. I feel very dizzy while on the platform. I once fell on the floor as the elevator doors opened. This is the same reason I will not take a ride on Drop Tower, Skyflyer, or SlingShot. Ever. Heights aren't my thing.