I just posted an answer which got down-voted and I'm wondering if the graphics upset the down-voter who as usual didn't leave a comment as to reason: Set CPU governor to performance in 18.04
Not wanting to upset anyone with my answers I'd really like to know what brought on the negative reaction?
Edit: Taking comments and answer into consideration I've edited the answer in the link above. When viewing the link you'll need to view the revision history to fully understand comments below.
Edit2: Following up on Oli's answer I put a script into the answer to prove Governor is being changed by kernel 1 minute into boot.