update translation
German Translation update

Change-Id: I6b78c960a7d702da33221f8455bea40745973067
Modify PerformanceControl to fit better into the System

Change-Id: Ia5b13ab77e9479c9936937044b5a0e60dd2a0533
Refactor

Change-Id: Idc95d429ec66ad0c82bd1147ce83b0130a9b8c79
Fix

Change-Id: I2b5d2faf5b3f3f77627be8caa8dab89dec6d5d0c