Disable forced smooth scrolling on the webpage

Currently the webpage ignores my setting of not using smooth scrolling and reintroduces a badly working variant of smooth scrolling through javascript.

The end result is a weird mixture between discrete jumps and smooth scrolling. I experience motion sickness when using the webpage on a desktop system.

Plus, on weaker systems (e.g. laptops running on battery) JavaScript smooth scrolling invariable becomes "laggy".