Seems correct. I might not use you average-user-device (iPhone SE 2016) but liked your idea and clicked the link. The page freeze for ~15s for the first load but then refresh only takes ~4s. The animation is smooth if I’m not scrolling the list. Scrolling seems hard to handle as the new items takes 2s to appear. Do you use a virtual table [edit: just read you sibling comment saying you don’t, yet] or heavy JS for styling the list? I usually have no problem scrolling long text lists. Another guess would be the logos size but I’m not in my computer to check it out. For context: I know my device is old but it handles fine most sites that don’t have too many ads, js shenanigans or super heavy assets.

Kudos to you, I’m sure my 2012 mbp will handle it fine though :-)