Unless it really bugs you, the textured bottom isn't a big deal. I've read some articles that seem to conclude that the textured bottom is faster/more efficient and some that seem to conclude the opposite. They 'say' the textured bottom creates and traps microbubbles along the leading edge where the water meets the forward hull when on plane, and these microbubbles travel along the bottom with less resistance than water does, effectively reducing the wetted surface and parasitic drag. This does seem to be supported, and it appears corroborated, by the fact that a boat goes faster on a lake with 3-5 inch chop (small) than it does on a mirror smooth lake, and the belief is that the trapped air traveling over the bottom reduces wetted surface.
Others say the laminar flow of water on a smooth bottom creates efficiency. Who knows? I conclude that it's not an issue one way or the other, but GO one way or the other. For example, textured everywhere is good as is smooth everywhere, but if you go for smooth and have rough spots here and there that interrupt the smooth bottom's laminar flow, then that's just more parasitic drag. One or the other is fine and nothing to worry about. IN FACT, unless you're racing on a smooth lake, all of this is a moot point .... drive over to the coast on a breezy day and look at the water. You tell ME what the biggest factors are in terms of speed and efficiency (hint: it ain't how smooth the boat's bottom is).