Help with Large Model Boat

[Red Admiral]

I have a large (54 inch) semi displacement model boat. I currently have a Torpedo 850 12v electric motor installed in it which is connected to a 3 Bladed 45mm brass prop. Is there anything that i could do to increase the speed of the boat? Thankyou

[Capt.Hook]

With semi displacement and displacement boats,the shape of the hull determines it's top speed.So adding more power will not give a noticable increase in speed.
Hope this helps.