Font swap should absolutely be allowed. Admins can restrict it to "original files that came with the game" if they don't want to deal with testing of independently developed fonts. Legibility should not be a gate to running the game, nor for viewers enjoying the run.

Thanks for doing the legwork to confirm that no unfair advantage is gained by such swaps, Buffalax. If someone wants to have the maximum speed, clearly they must run in JP with JP font anyway.

Though even if the JP->EN font pack swap made it faster, I'd still be for allowing it, to be perfectly honest.