Struggling a bit with Rockpool

Hi, Use a PC instead of the browser on the Pi and you'll find it's MUCH faster. If you don't know the IP address of your Pi you can fire up a terminal and type "ip a" and grab that IP address. Put that into your browser along the lines of :-

http://192.168.1.12:8000

Hope that makes sense, if not I can give you step-by-step instructions.