Usb Slow Transfer. I found many solutions. In the properties window select the 2nd tab called policies and you will see two.
Press windows key x and select command prompt admin. Hold the windows key and press r key to open run. What causes slow usb transfer speeds.
This is from internal storage not micro sd.
Open the start menuscreen windows key type computer and press enter. I found many solutions. Also important is to find where this device is connected to the computer usb2 or 1. I too was having this problem however after turning on the usb debugging in mobile transfer speed increased to 10 mbps.