Included Pull Request 3114 (GUILabelControl optimization)
See: https://github.com/xbmc/xbmc/pull/3114

Included Pull Request 3115 (GUIWindowSystemInfo optimization)
See: https://github.com/xbmc/xbmc/pull/3115

Included suggestion
https://github.com/Pivosgroup/xbmc/commit/788783e2d15d0063d2269c39b18bfdd768094bac#commitcomment-3922138