I don't know why this document took a really long time to load in Microsoft Edge. It was the first time I had opened a PDF document since getting my Adobe Acrobat subscription, after waking up my computer which I hadn't used for a week. After waiting 10 or 20 seconds the document had still not loaded. So I re-loaded the page (refreshed the browser window) and the doument came up after about another two seconds of waiting. So annoying.