This issue affects Chrome on Mac. Safari seems to work better.
The parts list allows you to scroll through the available parametric columns by swiping right on a trackpad. However, this interferes a lot when trying to get to the bottom of the page by swiping down. Usually when I swipe down, it's inaccurate... I sort of swipe down and right a little (right handed). This ends up scrolling the columns instead of scrolling the page as I intended.
It appears that the horizontal scroll has magnetism, meaning it's supposed to prevent accidental horizontal scrolling by resisting the horizontal scroll until enough "swipe force" is used. This should probably be increase a lot for Chrome.