This is the 2424th most frequent Spanish word.
max
"Max" is not a standard Spanish word; it is likely a personal name or shorthand.
In this sentence, 'Max' is used as a proper noun referring to a person's name.
Max es mi mejor amigo.
Max is my best friend.
Here, 'máximo' is an adjective describing the greatest level of performance.
El rendimiento máximo en este contexto es importante.
The maximum performance in this context is important.
In this case, 'máximo' is employed as a noun to denote the peak or most possible amount.