To answer your first question, if you are using wireless then yes that will be about as good as it gets under normal conditions. You might be able to increase speed but that requires knowing what other wireless links on the same channel and then seeing if you can find a less used one and making that your default channel.
If you are using Cat5/6 cable then you need to look at your connections and how the lan is set up on your computers.
To answer your second question - read the manual - there is a copy button right next to the USB port.