rollingstone.com is powered by 'Wordpress.com VIP' so is maybe not a great advert for this service? You do, however, find a lot of big business sites fail huge

rollingstone.com is powered by 'Wordpress.com VIP' so is maybe not a great advert for this service? You do, however, find a lot of big business sites fail hugely on things like pagespeed and CLS for the simple reason that they are not heavily dependent upon Google search results so, consequently, don't feel compelled to jump through every hoop required. With wordpress specifically, lots of folks use ready-made themes/templates which are often optimized for aesthetics rather than current performance metrics.