My daughter upgraded her Lenovo laptop to Windows 10 (hint – don’t do this until Christmas) and I spend several hours finding and installing drivers so it would work smoothly again. Having done so I found that the right-click button was very slow on the desktop.
The problem was cased by the right-click button having a menu item for Intel Graphics Properties. When this menu item was removed it was fast again.
To remove it using ShellExView follow this guide.