Say me the most good recommendations for organizing a combat system (optimization recomendations tho)

hello my name is amaro, is my first time putting a post in this kinda topic, bc idk where i put this discussion or something related to my situation, so im making a pvp game and i want to organizated and optimizate everything, specially optimization.

but putting that in side, pls people say me any recommendations for making the most best organization or optimization for a combat system (specially of how the skills are implemented on the player)