Tween.js speeds up when triggered by touch but not by mouse

This forum post is part of what got me on that track.

That user solved his problem using preventDefault(), That may be a better way to resolve it. Unfortunately I was unable to get that to work for me and have bigger fish to fry. But this is something I’d like to visit later and understand better. Since I am Windows based, troubleshooting on an iPad is a real problem. Getting a console to monitor seems almost impossible without also having a Mac.