When referring to performance, "better" means achieving a higher level of efficiency, accuracy, or quality in completing tasks.
Optimal Performance: This refers to reaching the highest level of efficiency or effectiveness in performing a task.
According to this theory, our performance is influenced by our level of physiological or psychological arousal.
This law states that there is an optimal level of arousal for each individual task; performance improves with increased arousal up to a certain point but then declines as arousal continues to increase beyond that point.