The speed of the game can be changed by the instruction found through Seruran_Blue's guide.

In this case, I consulted relevant personnel, because in principle speedrun does not allow to modify game files, which is very unfair.

After discussion, the following decision was made.

To ensure fairness, "No Speedhack" and "Speedhack"have been added to the leaderboard.

You can submit the corresponding type of running to these two new categories.

Good Luck.