The problem is because of your bios files ("dc_bios.bin" and "dc_flash.bin"). Replace them with other bios files that were not used by Chankast (prefer the Europian (PAL) bios).
It depends. Chankast shows a row of two numbers "xx/yy". The "xx" shows the current speed while the "yy" shows the normal speed. If "xx"="yy" then you have normal speed if "xx"<"yy" then you have slower speed than normal if "xx">"yy" then you have faster speed than normal :naughty:
The normal speed for most games is 60fps (in that case "yy"=60) but sometimes the speed changes (it may be 30 or even 20).
Some examples:
60/60=Normal speed
42.67/60=Slower speed
87.43/60=Faster speed
30/30=Normal speed
22.77/30=Slower speed
46.12/30=Faster speed