darker's cool and so is this wr

I have both a PAL and a USA rom, and I was wondering what version differences are there and which is faster. I know there's a challenge in Battle Arena that has a time limit of 60s in U but 75s in E.

Is it allowed? I know gameplay-enhancing cheats like speed modifiers and stuff are banned but does this apply here?

With normal course order, one can use livesplit for this category.