Would a Raspberry PI solve this data transfer problem ?
Damn straight it will. If you back in this thread you find the results of me changing from W10 to a Raspi 3B -- immediate 10% increase in hash rate while running the same freq plus was able to run at a higher freq.
I don't know if the issue is how Windoze allocates resources to USB or if is related to the Zadig USB driver but it made a world of difference.