I'm using Chrome on the latest Ubuntu. It's not a performance problem at all, the transitions are smooth and beautiful (and on this laptop, they had better be!)
The issue seems to be that the transition occurs only at certain scroll points on the page, and there is zero feedback where those are - so it's scroll, scroll, scroll, and suddenly, bam transition to the next page. It doesn't help that the intervals between the pages seem to be ridiculously long.
Unfortunately some mice/trackpads output a stream of scroll events. There is a limiter here to prevent unintentionally streaming all the way through a publication. Thanks for your feedback, maybe we can adjust the limiter a little.