ReadyNAS NV+ Seems really slow

I just bought a NV+, put 4x 1.5 TB seagate hdds in raid 5, that's all fine and dandy. It's on a gig network. It's running the latest raidator 4.1.6. Like everyone else has been saying my network speeds are from 3mb/s to 11mb/s. I've tried different cables, a different router, different mtu speeds, went through the full/half duplex options for 100mb (weird we don't have options for full/half 1000mb) but while set at auto negotiation its 1000mb full duplex (the speeds seemed a little more consistant at 100mb half duplex). I also tried setting my ip to static and not. I should also note that i found with jumbo frames off i get much better speeds.

Should also note my speeds on the exact same workstation to another network storage can see 20mb/s to 40mb/s.