Increase Contrast Checkbox Results in Slightly Snappier UI on OS X Yosemite



Checking the Increase contrast under Accessibility > Display checkbox can result in a small but maybe significant performance boost for the UI elements in Yosemite. You lose some of the transparency and near shadowing as a sacrifice for harsher darker borders, amongst other small things.

How? By going to  > System Preferences > Accessibility > Display, and ticking the Increase Contrast box does the trick.

I happened to make my cursor size huge to make it easier to see. Especially useful on a 4K display.