Default Actual USB 3.0 data transfer speed

Hi. I bought a USB 3.0 OTG cable and connect with my 1TB Toshiba USB 3.0 External HD (formated as ExFat).

I tried to copy file from HDD to internal storage of Note 3 but the maximum speed i can see is around 30 MB/s which is slow like USB 2.

1). Anyone tried and has faster speed than this?

2). It takes about 2.5 minutes for Note 3 to read the 1TB HDD... Is it normal?
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