Originally Posted by solking

Broly is driven by his anger and rage towards Goku. He doesn't think clearly in a fight. Also you have to take into account that he was practically alone for most of his life. He lived on a empty planet with his father. His father could only teach him so much. Most of the time h was hooked up to that machine that controlled him. Other than that he has no fight experience and his moves are inefficient. He uses way more power than anyone else. He may have unlimited power but he doesn't have the skill or knowledge to fully think about whats happening. He was so blinded by rage he couldn't control his own power. But the fact that he can release so much energy non stop proves that his power is practically limitless. And if there was a limit no one would survive long enough to see it. Only if he could train properly or have someone good to teach him.