I have a 80X Lexar 1gb CF card. My Lexar 2.0 multicard reader downloads 2.5x faster then the cf slot in my PC. The card reader is old the PC is only a few months old. The PC has a Mitsumi floppy drive/card reader(usb 2.0) Is this difference due to the fact that the older Lexar reader is able to take advantage of 80X and the newer PC slot is not? They both usb 2.0. The same speed difference happens wheather I use Nikon Transfer or explorer.