I have bad video playback performance in Loki. After some googling I found this hint: http://elementaryos.stackexchange.com/questions/7688/cannot-install-intel-proprietary-graphics-driver and with some dirty trick (I put the Ubuntu 16.04 data in /etc/lsb-release file) installed the latest Intel video drivers.  
Unfortunately after doing all this I see no change in performance.  

Any hints?