That pump is significantly too big. Not all "2 HP" pumps are the same size, marketing issues, but even a small 2 HP pump would be too big. A smaller pump would cost much less to operate and would actually filter the water better (filters work better at lower flow rates).
With a large pump there is no need to leave it running all the time. If you have a timer you might try out running the pump 8 hours a day and see how things go and adjust the run time from there. If you don't have a timer you might want to get one, it will save you at least half of the electric costs of running the pump, and probably more, by using shorter run times.