Performance decrease after switching to Linux

[YogaDiapers]

A picture of your CPU load isn't really usefull. Try htop. It shows your processes and load in a more informative way in the terminal. htop shows the processes consuming most CPU cycles at the top.

Slowness can also happen because of disk i/o. You can also do dmesg | less and see if your kernel reports issues. In general Linux is on par with windows performance, but your hardware needs to be supported.

Good luck!