receiving a write command from a host;

identifying, using a first machine learning model, a throttling delay time;

transmitting a completion message to the host after the throttling delay time has elapsed;

collecting weights of the first machine learning model and performance information of the storage device corresponding to the weights;

learning the weights and the performance information to generate an objective function indicating a relationship between the weights and the performance information using a second machine learning model of a weight learning device;

selecting a weight corresponding to a maximum performance using the objective function; and

updating the first machine learning model with the weight.