So 140-160 seconds isn't too bad. A bit below normal, but not bad.
Our rough calculation for IQ 16 is 10-20 MB per second per core. A 40 core system should be able to process 400-800 MB per second in total. 62gb would take roughly 155 seconds at 400 MB/sec (10MB/sec/core).
Mark
PS - I've been trying to post for some hours and it keeps kicking out my tech response to one of the earlier posts. GRRRRRRRR