How to speed up CPU of macbook pro with 10.11 El Capitan. Macbook is with no battery. In that case cpu works less than 50% of max frequency with sometimes 100 % CPU load? But is very slow, even youtube can't show video. iStat shows CPU Core 0.8Volts and 3-5A, it's about 4 Watts on CPU. Max power of CPU is 35Watts. How manually speed up frequency? Or disable Intel SpeedStep technology?