7.5M0 bug: excessive CPU usage
 

In comparison to 7.4M2 I found that 7.5M0 pushes the CPU into turboboost a lot more often. This is also confirmed by TPFancontrol that indicates rising temperatures and a fan that kicks in more often.
Reverting to 7.4M2 brings behavior back to normal

Config:
Lenovo X1CT -7 8Gb Windows 8.1 x64
Lenovo Usb 3.0 dock with 2x Lenovo L2440p in 1920x1200