For the first time in ages I hooked my Surface Pro 3 up to my 4k Tv and was showing my wife some You Tube clips she wanted to see. Now I always use Chrome as my browser but found on a 4k You Tube clip it was maxing the CPU out on my Surface Pro and kept stuttering. 
I then tried same clip through new Edge browser and was only using 11% CPU and ran super smooth. 

Is this normal? Or is there a setting in Chrome I need to change. I love Chrome but this seems odd that it cant run 4K video anywhere near as good as Edge. Or is it just not optimized for Windows 10 yet.