A method is disclosed for controlling compression-braking performance of an engine having a piston in a combustion cylinder. The method may include providing a valve in fluid communication with the combustion cylinder and at least one valve actuator operable to control the valve to perform compression-braking by opening the valve, which may include opening the valve to a first peak-valve-opening during a compression stroke of the piston and opening the valve to a second peak-valve-opening before a second half of an expansion stroke of the piston. The method may also include determining a target value for a stress in the at least one valve actuator. Additionally, the method may include designing the magnitude and timing of the first peak-valve-opening as a function of the target for the stress in the at least one valve actuator.