A performance adjustment apparatus connected to an information processing apparatus includes a performance adjustment unit that controls operation processing performance of an operation processing apparatus of the information processing apparatus based on a specified performance adjustment value, a performance type list information management unit that manages performance type list information comprising a plurality of pairs of a performance type and a performance adjustment value, a performance type specification unit that specifies a performance type in the performance type list information managed by the performance type list information management unit and changes the performance type, a performance adjustment value setting unit that obtains a performance adjustment value corresponding to the performance type specified by the performance type specification unit from the performance type list information management unit, and sets the obtained performance adjustment value in the performance adjustment unit.