Firefox scrolling jumps around even with "Smooth Scrolling" option enabled.

Recently switched from Brave and noticed that while scrolling the page jumps periodically instead of scrolling down smoothly, this is the case even with smooth scrolling enabled in settings.
Running on Linux Mint Cinnamon, latest version. Firefox latest version.
Any ideas why this is, or if it can be changed to be more like Brave/Chromium in general? I've seen other videos of people using firefox having the scrolling smooth so I assume it's possible?