I upgraded my SSD and I am now using my old one with a USB 3.0 external case. My disk speed test application shows ~150w/200r. Although when I tried to copy some games (about 30GB), speed got lower during copying. First ~10 seconds about 15-20% of files where moved, then it took another 5 mins for the rest. Is there some obvious reason why this happened, could it be some problem, or it could be because of the specific files?
System is OSX ML and I am using USB 3.0 connection.