This study explores the integration of Control Co-Design (CCD) with Linear Quadratic Regulator (LQR) optimisation to enhance DC motor performance. Focusing on early design stages, it demonstrates how CCD and LQR can cooperatively improve system parameters, addressing both step and triangular disturbances. Results show significant enhancements, including up to 44.3% overshoot reduction and 62.2% energy consumption decrease, alongside a notable reduction in maximum actuator voltage by 51.1%. These findings underscore the technical advantages of incorporating CCD and LQR optimisation from the outset of system design, offering a comprehensive framework for achieving superior system performance, adaptability, and efficiency. The results contribute valuable technical insights into the application of CCD in system optimisation.