I think a good example is this. If MegaMan was pizza, and pizza is your favorite food, the best ports would be like your favorite pizza made by the best pizzeria in town and costs probably $30-40 USD. But that means that these ports are more like the off-brand frozen pizza that has some toppings you'll probably scrape off. It's still pizza, but it just isn't as good as it really could be. Honestly, just emulating the old game files would play smoother with better controls.