Yep, same here. I know it seems like a small thing but for me makes ground missions unplayable. I'll log in to do ship stuff but for any ground stuff I log in on my PC.
upgrade your machine and use the official Mac version... thats what I use... the Unofficial version isn't needed any more... this thread is pretty irrelevant unless you are trying to use a really old machine to play running 10.6, which isn't supported by the official version. If your machine has 10.6 and cannot upgrade to 10.9 (which is free), then it probably cannot handle STO very well anyways.