Thank you for the feedback :D
Feel like it's mainly a balancing thing, we made the boats move at 10% their original speed as nobody was buying multiple boats when the first one was really fast. Story wise it's a cobbled together boat made by the old lighthouse keeper, any boat you buy from the lighthouse will be 2 to 3x faster than the first one.
Mouse wheel to zoom sounds like a good alternative feature we can add, we do want to keep it mobile compatible too. Using the mouse position to move around was conflicting a lot with the boat path drawing but can be looked at if we have more time :)
Do appreciate the feedback. <3