That might be a limitation with the host controller and drivers that you are using. You can update the drivers if there are any updated ones.
What is the firmware image that you are using?. You can use the firmware image which is there in the attachment of following application note:
We have seen numbers more than 400MBps with the images attached to the above mentioned application note and with the streamer application. Also please use C++ based streamer application to see the better data rates.
Also, please let us know the operating system that you are using.
Hi! I am using streaming in firmware. Host with win7 x86. Tried out the c++ streamer and indeed is faster, it reaches 190MB/s. Thank you for the tip, going to test the optimization. Thanks.