With multiple stream I reach full speed.
ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 2.27 GBytes 1.95 Gbits/sec sender
[ 4] 0.00-10.00 sec 2.27 GBytes 1.95 Gbits/sec receiver
[ 6] 0.00-10.00 sec 3.01 GBytes 2.59 Gbits/sec sender
[ 6] 0.00-10.00 sec 3.01 GBytes 2.59 Gbits/sec receiver
[ 8] 0.00-10.00 sec 2.62 GBytes 2.25 Gbits/sec sender
[ 8] 0.00-10.00 sec 2.62 GBytes 2.25 Gbits/sec receiver
[ 10] 0.00-10.00 sec 2.92 GBytes 2.51 Gbits/sec sender
[ 10] 0.00-10.00 sec 2.92 GBytes 2.51 Gbits/sec receiver
[SUM] 0.00-10.00 sec 10.8 GBytes 9.30 Gbits/sec sender
[SUM] 0.00-10.00 sec 10.8 GBytes 9.30 Gbits/sec receiver