It will be sad if this game sit on one core, this will limit the game.
Divine Original sin have this problem, the game sit on 1 core, right now they are updating the engine to support multithreading.
I just check:
Wasteland 2 use all my quadcore. All cores working at the same time, thats means POE is going to have no problems, also the game is 32 Bits, max use of memory is 4 GB, windows show thats is using like 1-2 GB.