The obvious answer is slow down or buy a speed boat! But how are you steering. You need to clamp the motor ahead and steer using the rudder or use an outboard tiller extension so that you can sit well in the boat.
But you need to get to the throttle which means going back. At slow speeds this isn’t a big deal but… I put a bracket on for a friend who used a 10hp Mercury – it was terrifying!!
Most people just use the outboard as “auxilliary” power ie below hull speed. I think if you’re planning on planing you need to have a serious think about the controls and trim