Wait until she grows into those feet!!
I've lure coursed 3 or 4 Boerbels, the one male was HUGE (I want to say pushing 200 lbs?? but could be mistaken) pretty impressive though. He wasn't fast, but you got the feeling it was freight train on feet and could keep going through anything in front of him.
One female I coursed really did a nice job of it, and was pretty quick, relatively speaking. Definitely no greyhound, but still quick enough. She seemed to have a good personality though too, whereas the male had some mild aggression issues , but, in all fairness, I think the owners had a lot of learning to do about dogs in general.