VOICEOver, Braille, and Safari Issue on iOS 15.6.1

Hello all!
So I'm planning on reporting an issue to Apple, but before I do this, I'd love some coroboration.
On some sites, whenever I use my BrailleNote Touch+ as a Braille display, the display always seems to be unresponsive. In certain cases (like the site I'll link to), VoiceOver as a whole will become unresponsive. I'm curious if anyone by chance knows the specific reason why Safari behaves so poorly with VoiceOver on specific pages. Is it due to the complexity of the content, or some other reason? Here is the link to the site in question: https://dotesports.com/hearthstone/news/battlegrounds-season-2-quests-standalone-rewards-track-coming-to-hearthstone
Do be warned though that (on iOS, as statsh above) you may experience the bug I'm experiencing. However, if you do experience it or not, I'd love to know people's thoughts on the root cause of this issue. Thanks!