There is fast and fast, there is cruising equipment and cruising equipment.
If you mean planning speeds, the boat should be as light as possible. That is a small boat and the same load will be much more detrimental for speed that in a bigger boat and if I remember right Eric in his Pogo 12.50 does not even carry an outboard engine.
Anyway the boat with a "normal" cruising charge for a 30ft would still be fast downwind but would need much more wind and sail area to plan, so much that I doubt that it would be practical solo in cruising mode.
Off course, we would have to define what is a normal charge and what one needs for cruising. That varies widely. Someone that will plan to cruise with a lot of people and charge would not probably want a Pogo 30.
Think of it like a motorcycle versus a car.
It is possible to cruise with a powerful sportive motorcycle (and I have done that) but not ideal to take someone with you neither the camping tents and food. Sure, it can be done and the motorcycle will still be fast in a straight line but would be comparatively more sluggish around bends than a touring car with the same load. On the car that weight, that on the motorcycle makes a big difference, is hardly noticed.
So if you want a Pogo 30 think about cruising light, as light as you can manage.