I'm sure @zipmon didn't do it on purpose. Shows the settings and says in the YouTube video description:

Played on the default settings (普通/Level 3 difficulty, 早い/Level 3 speed), on Nintendo Switch 7.29.2020.

Default speed is 2 and in Japanese is ふつう futsū "normal". I see how this happened. The default settings aren't stated in the rules and if you change them, there is no revert to default option. Probably is slightly faster planning in Japanese for less dialogue.

I used a guest account on Switch to make sure I booted with the default settings. They also match the initial settings on both no-intro's good and bad dumps.

Here's what the default settings look like. Switching A and B would be fine: