fix framerate handling, better center adjustment, cleaning
fix framerate handling, better center adjustment, cleaning

jubalh/cava,Suninus/cava,nrhine1/cava,jubalh/cava,Suninus/cava,phijor/cava,karlstav/cava,nikp123/cava,anko/cava,anko/cava,nikp123/cava,nrhine1/cava,karlstav/cava,phijor/cava