Piecing together the information you've given us, the two take about the same amount of time.
77MB / 772k per second turns into:
77,000,000 / 722,000 = 106 seconds, or 1 minute and 46 seconds, or approximately two minutes.
You've told us how long it takes under emulation -- but not how long it takes on your Lenovo laptop.
-JD.