Potentially OT. Videos lagging & buffering in any browser but Google Chrome.

[Juan R.D. Silva]

Hi folks,

Debian Bullseye here up to date. Browsers installed: Firefox, Opera, 
Vivaldi, and Google Chrome.

I'm having a weird problem streaming movies from archive.org. The movies 
are lagging & keep buffering in all browsers but Google Chrome. Google 
Chrome streams same movies at the same time without any stuttering.

So far I've notices it using on archive.org only, so I'm not sure if the 
problem is on my side or on archive.org. The problem is rather recent 
but persistent and in last days get really bad.

Any suggestions?

Thanks.