Being a CEO requires determination and courage is not small. Burdens and responsibilities far greater than the responsibility in the company. Really heavy. This is widely experienced by the CEO and founder of startup.
To facilitate the work, the CEO should try to make as little as possible the decision.
The great CEO should delegate more decisions in the company of others are capable. The CEO needs to try to hinder the decision by subordinates. This will free up time to focus on making more important decisions (and has the benefit of giving room to grow and develop for them in the company because the trust you have bestowed on them).
However, being CEO is also not just about making a decision. Sometimes decisions that seem small and trivial it has significance for the company.