Did a iperf 3 test on my ER-X SFP <> NAS and the results are worse than my Asus N56U with HWNat turned on.
Tx - 212 Mbits/sec
Rx - 350 Mbits/sec - 430 Mbits/sec
On my ASUS I was getting ~950 Mbits/sec between my PC and NAS connected to the same modem (switch).
$ show ubnt offload
IPSec offload module: loaded
HWNAT offload module: loaded
Traffic Analysis :
export : enabled
dpi : enabled
version : 1.480






