Comment 5 for bug 1889178

I've done more research and this may be related to xorg from what I've been reading. This has also been an issue since ubuntu 17. So many people have this problem and it's not been fixed 3 ubuntu versions down; google search xorg media key lag. In summary short spike of cpu usage when multimedia keys are pressed such as volume or brightness, this can be from a headset or using keyboard fn keys.