Q: Maverick causes turtle crawl for screen sharing

I have a Mini which only sends music to my audio system. I was and want to control it from a MacBook Pro via Screen Share. It isn't connected to a display. My internet is slow. With 10.7 I was able to lower the resolution of the imaginary display, in display settings, to get a faster response. Navigating with the arrow now is painful, I'm just not oordinated enough to anticipate where the arrow might land. I only have one option for a display setting which is higher then my internet would find advantageous. I'd love to go back to any earlier system and staying there but that seems as complicated as maybe a simplier answer. Hopefully someone can help me with some network setting or something to speed up Screen Share with Maverick.