Melee AR codes

[Kirbyrocks101]

i have a problem with AR codes
when i find codes on melee,ther like soo:
XXX-XXX-XXXX with any letter/number
were,on the emulator,there something like this:
XXXXX XXXXX with a-f or somthing,and maybe more spots

can i find codes that can be used or somthing??

also,on a side note,what do i do to make the emulator run at just 100% (not to slow,not to fast)

tx in advance!