My dvd writer cd rom reading very very slow why?



hello to all i need some help here so if anyone can help me that be great thank you
i just want to know why is it that my liteon 16x dvd+r/+rw dvd writer is reading very very veryyyyy slow…
and the same goes with the liteon dvd cdr rom both reading data far to slow
when i go to play a music cd in the drive it very choppy all the firmware is updated and all this is strange hmmmmmmm…
anyway is there a way in restoring the 2 drives to factory settings?? so it will read alot faster …

oh i also have cleaned the drives with dvd cleaner and they not that old either