The slow part is due to it needing to encrypt the data on to the same SD card.
Why take off the back of your console? For small files use MicroSD app, for large files, use FBI's socketpunch.
I been using SocketPunch for all CIA installs...it was just for the first couple days after installing A9LH that I was taking the card out, copying files, etc...but once I got SocketPunch running, screw taking the back off LOL