Comment by VioletVillain

Those underpowered processors were only used as an optimization benchmark; if it runs good enough there, you could always throw more computational power and cores at it.

EDIT: Also, the numbers were in MiB/s (mebibytes per second), not Megabits per second; 10.5 MiB/s would be ~88 Mbp/s (megabits per second).