Well, the Venture Cat has the overall Porthsmouth handicap of 90, just between the Hobie 14 and the Hobie Wave. I suspect that sailing with the Hobie Wave would be much more interesting than sailing with faster beach catamarans.

Speed alone is not the only thing of importance while sailing. If it was the case, nobody would purchase a Wave.

I suspect that on a downwind leg, the straight path is going to be faster than jibing at 90deg of apparent wind unless you are willing to sit on the downwing hull.
I am not suggesting to try the wild thing but you should try to get the downwind hull to go deeper in the water to help tracking