The demo is slow as molasses on my 2012-era Macbook Air (Google Chrome). Seems to have something to do with the scroll hijacking, which IMO is usually a bad ide

The demo is slow as molasses on my 2012-era Macbook Air (Google Chrome). Seems to have something to do with the scroll hijacking, which IMO is usually a bad idea. I wonder if there is a way to do this kind of vertical presentation while still allowing me to use the browser's native scrolling.