Wireless AC slow (and different) read/write speeds

Hi all

I just bought a new Mac Mini and unfortunately it is too far from my media server to run an ethernet cable (I just moved) so I use an Airport Extreme (new model with AC Protocol).  But the read speeds seem to be slow I can't broadcast some movies from high on the server bandwidth.  I tested the speed of transfer, and it seems that I get the following:

READ: 24 MB/s (or 192 MB/s)

WRITE: 8 MB/s (or 64 Mb/s)

Can someone explain to me why these speeds are not the same?  And should not be a lot faster?  I get full signal and I joined technical details if this helps to explain anything. I would like to know what speeds you guys get with your Airport Extreme.

Thank you!

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