After having not used the Pi in a few months I installed Jessie and updated everything. Once fully booted up and everything I attempted to run Minecraft to poor results. CPU was 100%, everything at a standstill. I once attempted to run Minecraft about a year or so ago and things seemed OK.
I'm wondering: Is Jessie the problem or is it the older Pi? I was hoping my son could use the Pi and learn some programming with Minecraft. Anyone have any ideas? Will a new Pi 3 run it better? I can't seem to find anything anywhere of similar issues.