Why could your boat with an outboard be difficult to steer straight at low speeds?

Steering a boat with an outboard motor at low speeds can be challenging due to the lack of effective water flow over the rudder or propeller, which diminishes steering responsiveness. Additionally, the boat's hull may experience more lateral resistance from water, making it prone to drifting. Wind and current can also have a more pronounced effect on the boat's direction at slower speeds, complicating control. Lastly, the weight distribution and balance of the boat can influence its maneuverability, leading to difficulty in maintaining a straight course.