This site appears to use a scroll-linked positioning effect. This may not work well with asynchronous panning; see https://developer.mozilla.org/docs/Mozilla/Performance/ScrollLinkedEffects for further details and to join the discussion on related tools and features!
Asmel-a yettban dakken iseqdac asemdu n useflu scroll-linked. Aya yezmer ur itteddu ara akken iwata ɣef ugalis aramtawan; ẓer https://developer.mozilla.org/docs/Mozilla/Performance/ScrollLinkedEffects ɣef ugar n telqut udiɣ ddu ɣer usqerdec icudden ɣer ifecka akked tmahilin!