What is it ordinarily used for?
Presumably you mean faster on the road. Usually, on-road and off-road improvements are very different and usually conflict. If you want to make it a road car, you can set it up in a very different way to how you would if it is an off-road car - transmission, engine, torque allocation, and of course engine modifications, amongst other very important factors!
Essentially, if you optimise it for road use, you're likely to regret it if you then need to go through the mud and its performance is hampered by whatever you did to it!