No, it would have no effect on performance if stock system is in good working order.
It is a visual effect only.
In the old carb days a hood scoop could be used for a Cold Air Intake(CAI) but when vehicle makers went to fuel injection they also added CAI, and in a better spot, lower down in Rad support, cooler air than above hood.
Ram Air on carbs was actually bad unless you did some redesigning, a carb works on engine vacuum pulling out fuel from the jets, if you force air in you reduce the vacuum pulling in the fuel.
Good read here on "scoops": An Explanation of Hood Scoops - Ate Up With Motor
A supercharger sticking out of the hood is another story, lol, that's part of the engine, not part of the hood