“I found that the keyboard and mouse worked ok apart from the mouse was extremely slow so I had to make the following changes:
Open a terminal
sudo nano /boot/cmdline.txt
add onto the end of the line "usbhid.mousepoll=0" ((note if still slow on 0 try 1))
save the file, then: sudo reboot
Once rebooted the mouse was fast and quick.
These instructions should really be sent out with this as it doesn't seem to work well out of the box.”