Apple's implementation of VNC in 10.8 was perfect. Crisp, sharp, no blurriness.
In 10.9 and 10.10, VNC is unpleasant to use. Whenever you move a window, some graphics turn blurry, and take 5 - 10 seconds to properly sharpen. This goes for graphics and fonts. This occurs even on a brand-new Mac Mini running 10.10.4 with 16 GB RAM.
I've enabled "Reduce transparency" in the Accessibility control panel but this does not resolve the issue.
All thoughts welcome.