Download/write speed very slow

[Wesso]

Hi there,

I bought i WD Elements USB 3.0 500 GB hard disk to download data on via NZBGet 9.0 which I compiled. I formatted the hard disk to Ext3 and set the download path of NZBGet to my /media/usb/ mountpoint.

I am achieving speeds of 800 Kbytes per second where is should achieve 6 MBytes per second. Is it just a hardware limitation or did i do something wrong?

Greetings,
Wesso