While the CMA-ES also converges to the optimal solution for the higher-dimensional parameter spaces, both CPSO and DE have difficulties identifying the global minimum. In the case of CPSO, altering the swarm size or the competitivity parameter γ provided no significant improvement. The search results of the DE algorithm can be refined by utilising the rand1bin and rand2bin strategies. For the Rosenbrock benchmark test, SOPPI achieved the worst scores. Modifying the parameters of the optimiser showed no remarkable improvement.