Turbo is obviously the better profile for cooling since it pushes the fans to the max under intensive loads and ramps up quicker than performance mode. (Performance mode pushes the fans by a little bit when temps go over 70C CPU, Turbo on the other hand pushes the fans hard when temps go over 65C CPU around 70% fan speed. This is what I experience on my Zephyrus S GX502GW, your mileage may vary)