There is a super cool JavaScript library called Locomotive scroll that you can use to create smooth scrolling and parallax effects.
I have already tried to get this library to work in Sitejet. Unfortunately there are some bugs and therefore it is not usable.
It would be very great if there was a native integration for Sitejet.
Sure, not everything has to be possible. If only the basics like smooth scrolling would work, that would be great.
GitHub: GitHub - locomotivemtl/locomotive-scroll: 🛤 Detection of elements in viewport & smooth scrollin
Example: Locomotive Scroll | Detection of elements in viewport & smooth scrolling with parallax effects.