Pump Size for Waterfall and Deck Jets

I have a main pump running my pool today but it does not have enough power to run my pump and all items like in floor cleaner as well as the waterfall and deck jets at once. I have access to a Pentair Superflo 2 HP pump. Would that work to power the waterfall and deck jets? Should I go that route with a second pump or stick with a single pump and try to change the flow from the in floor cleaner to the water features? So two questions...

1. Am I better using two pumps or one?
2. If two...

Pump Size for Waterfall and Deck Jets