People are treating optimization as a zero or one thing. While in fact there are many middle grounds. If we're taking Pareto principle into account, I can say

People are treating optimization as a zero or one thing. While in fact there are many middle grounds. If we're taking Pareto principle into account, I can say that we can do 20% of optimization to get 80% of the benefit. The more experienced you are, the easier that first 20% is.