The macro for speed farming in the Anime Fighting game, created in the Keyran program, allows you to automatically increase the speed level of the character. It is based on a specific sequence of actions that can be configured through the program. When the macro is activated, the character automatically performs a number of actions that contribute to an increase in speed, such as scrolling the location, performing certain control combinations and using abilities. This allows users to save time and energy by leveling up their character in the Anime Fighting game.