Try viewing it on Nitter [1]. It's one of those (no|min)-JS frontends, along with Teddit [2] (Reddit), and Bibliogram [3] (Instagram).

But still, does anyone know why video quality on Twitter is so bad?

[1]: https://nitter.eu/AlexanderNL/status/1410253599502962692

[2]: https://teddit.net

[3]: https://bibliogram.art