Option for default CD read speed?

[Neorocket64]

there are many games that have problems when the read speed is not what they expected it to be. i think this has been reported but also with appropiate fixes later on, which is great! but is it possible for making normal cd read speed an option for [Global]?

since it will be greatly benefit for someone who just wants that slower reading speed for accuracy and stability sake if many bugged and non working games only caused by inappropiate reading speed. atleast it will make compatibility list little better. and would be great if this is the default option and use "high speed' cd read as optional (and experimental) option for one who seek for faster loading with reading speed adjustable if such option enabled.