Eyedropper Sampling Ring

This new feature in Illustrator has sluggish performance.  I'm glad that Adobe allows us to disable a lot of the new features because they often either interfere with existing workflows or have performance issues.  In the case of the eyedropper Sampling ring, it has both problems.

When working in Illustrator I often select the eyedropper for picking up or applying colors, but I'm also still manipulating objects in other ways by using key modifiers.  With this new feature, I press shift to do some other task and the giant, sluggish sampling ring appears.  As I move the cursor around, the sampling ring doesn't move with it because it's too sluggish.  Also, it's more of a distraction for me in Illustrator but that's beside the point.  It can be disabled under preferences/general.  It's the last checkbox on the bottom right.