I just started using Superpowers and found that using the two finger scroll to zoom when editing a tileset/map/etc zooms extremely far in/out with a very short distance on the trackpad. Pinching to zoom works much better however.
My suggestion would be to add a toggle somewhere to pan rather than zoom with scrolling.
(I hope this is the correct place to suggest additions)
I have found an issue on the GitHub in regards to a similar problem here.