I have a WD elements USB 3.0HDD . Though i dont have any USB 3.0 slot on my PC, so today i tried it on my friend's laptop having 3.0 support. I heard that the speeds of 3.0 are 10x the speeds of 2.0, but my speeds didn't rise above 70 mbps. Is there some issue with the HDD or these are the normal 3.0 speeds??