The emulator qemu-system-i386.exe cpu usage almost constantly running between 7~9
Android studio 2.1 Android SDK Tools: 25.1.3 Host Operating System: Windows 7 - i7
Update:
I have installed Genymotion plugin at genymotion.com/plugins, and it has an amazing performance
I reduced the CPU usage of my emulator by setting the framerate of the monitor to 60hz. It was on 144hz and my CPU was running at 60% - 70%. By only changing the framerate of the monitor, it's now sitting at 3% usage.