Chrome Became Highest Scoring Browser on Speedometer, Ever

Chrome loves to eat huge chunks of available CPU on my MacBook while watching YouTube videos. I use ublock origin so my fans are basically never running otherwise, even on other streaming platforms. Netflix does tend to run the fans continuously, but at a very quiet, low rate.

This machine is ooold so having the fans run at max always makes me nervous. This never happens in firefox. I've talked to friends on relatively new MacBooks and they all run into the same issue with Chrome + YouTube.

Anyone know what the he'll Chrome is up to with this?