I'm not sure how YouTube estimates the proper video quality for your internet connection, but they're definitely doing it wrong. I have a 150 Mbps connection and I can watch Full HD videos without buffering. This was already the case on my old 16k connection but in both cases YouTube defaults to 480p. This is really annoying and I always end up setting it to the highest quality.
Another problem seems to be YouTube's player that just sometimes stops to play although the video is completely loaded, or you try to skip or go back a few seconds and it just stucks completely.
Luckily I found this Firefox extension that just uses the native player and allows me to use high quality by default:
Another problem seems to be YouTube's player that just sometimes stops to play although the video is completely loaded, or you try to skip or go back a few seconds and it just stucks completely.
Luckily I found this Firefox extension that just uses the native player and allows me to use high quality by default:
https://github.com/lejenome/html5-video-everywhere