Twitch Stream pixelation despite HD?

do
1

At the moment I often stream Minecraft in HD on twitch, but I noticed that I see pixelation on twitch despite the HD stream (see picture)

Twitch Stream pixelation despite HD

Can someone help me solve the problem?

or

Yup… You need better inet. Yes, maybe you have a 500K line… Then plug the LAN cable into your laptop or PC!