Comment 9 for bug 1803848

Ok, i have tracked down the issue, for later reference, you can read it:
https://www.linuxuprising.com/2018/08/how-to-enable-hardware-accelerated.html
https://askubuntu.com/questions/1066105/how-to-install-amd-graphic-drivers-on-ubuntu-18-04

First of all, i have two cards in my machine HD5500 - R7 M260 (Topaz)

Unfortunately ubuntu 18.04.1 does not pick up mesa at default, and it needs to be installed separately.
It was installed before, but the official amd-gpu was a crap, i was not able to login, so i installed the linux and amd-gpu version back and forth, and with bionic beaver it just didn't happen automatically.

When the ubuntu 18.04 upgrade was coming, my GPU card was disappeared very likely. I do remember that it was there on the lspci list.

The post was right, vp8/vp9 hardware acceleration just not supported by my card (i had to instal the h264ify plugin), and i had to install latest dev chromium to make some progress.

Now my CPU is not used at all, steady 6%, however neither ubuntu nor latest released chrome is not there yet to avoid tweaking.

This youtube video is a very good test on 1080p, on chrome it simply kills my PC:
https://www.youtube.com/watch?v=YqeW9_5kURI

Although my CPU is not used at all, the lagging hasn't disappeared.
I think when it's buffering the CPU goes high. (30-40%)

I have read also about some VPN throttling.

I'm not just using youtube. I have made the apport-collect