On a fresh 20.04 installation, Chromium/Brave/etc. do very well in term of CPU consumption until any kind of HTML5 content is loaded (easy to reproduce on Youtube), which suddenly makes the browser a lot more hungry.

Example of the setup on Brave:

Graphics Feature Status

  • Canvas: Hardware accelerated
  • Compositing: Hardware accelerated
  • Multiple Raster Threads: Enabled
  • Out-of-process Rasterization: Hardware accelerated
  • OpenGL: Enabled
  • Hardware Protected Video Decode: Hardware accelerated
  • Rasterization: Hardware accelerated on all pages
  • Skia Renderer: Enabled
  • Video Decode: Hardware accelerated
  • Vulkan: Disabled
  • WebGL: Hardware accelerated
  • WebGL2: Hardware accelerated


Any ideas about how to fix this?