I can confirm that this mod can tune-up the device. In fact it must be a great imrpovement because when doing filesharing eMMC s***s. I think it has to do with 2 interfaces. And about speed increase one cannot expect a wonder an increase in 6% - 30% is not bad compared to a shareholde value of an enterprise or other badly coded programs here. BTW. I have some tune-up utilities in my signature.