Hi, just wanted to share this: After a lot of troubleshooting with a brand new Alienware 13 R3 with Windows 10 (full updated), I solved all my issues just uninstalling Tobii Eye Tracker. 

The Windows desktop was really unresponsive, the taskbar was responding after 1-2 seconds after each click, all was slow. Now it is like having an upgraded laptop. 

Cheers,

Michele