Hi @atonse! Finally had the time to debug this and turns out it was trivial! We were missing a requestAnimationFrame, d'oh! Thanks for pointing it out, solved here: https://github.com/deco-sites/starting/pull/307
Oh, that's terrible! Can you let me know your browser/OS combination? Seems like we've found a terrible performance bug for some combination that's quite common here in HN!