Have a problem in the functionality on the router freestation 5

https://lede-project.org/toh/hwdata/arcflex/arcflex_freestation5_v1 This is the product page with links to the lede firmware.
LEDE does not work correctly with Z2B-AFM2 (RT3572 module). In the name of the radio for this chip rt3050 incorrectly specified. The signal level is very weak and for the 2.4 GHz and 5GHz. At maximum power the signal range is only 3 meters!
P.S After installing the drivers (kmod-rt2500-usb kmod-rt2800-soc kmod-rt2800-usb kmod-rt2x00-usb kmod-usb-dwc2) the signal is amplified and bridge was established at a distance of 1400 meters, but the speed of the Internet through a usb adapter based on the rt3572 (and other adapter based on rt3070) does not exceed 12-13 Mbps. Although radio on the basis rt3050 shows the rate of 40+ Mbps. (this is the limit of my tablet)