EAC doesn't play well with the SMART-X feature in LiteOn drives.
SMART-X is supposed to let the drive play quietly when you're only listening to music on a CD or watching a video on DVD and it's supposed to let you read at maximum speed when ripping or copying a disc.
When using EAC for some reason SMART-X thinks you're only palying the music so it slows down.
You can circumvent this temporarily by e.g. using CDSpeed to perform a Read Transfer test just for a few seconds until the drive is at maximum RPM speed, and then you can quit CDSpeed and perform your rip in EAC. It's a bit of a pain but it works.
I have several other drives to perform DAE so it doesn't really bother me.