Disc dupe 2000 help

i used to be able to read at max speed off the plextor drive
12/10/32a
but after reinstallin plextools i can only get up to 15x while reading a cd
is there anyway i can get it back?
thanks in advance

Check and make sure that DMA is enabled for the Plextor.

how would i do that?
thanks for the reply

edit:
NVM got it sorted
cheers