So i want to start running this game im just curious if you play on a patched version of the game and if it so is there a specific patch i should update to?

Also does the "new" 3ds make any difference for this run?

There isn't a specific patch you need to have, and the new 3ds has no effect on the run

I do! I usually start streaming around 10:20pm BST, which unfortunately may not be ideal for someone in Western Australia.

Also, which language is faster?

Apparently English is the fastest language for this game

I am going to be running this game more frequently soon. & English is for most games