You can use this patcher to downgrade from the most recent patch to the original patch of the game: https://www.speedrun.com/patches/SoT_unpatched+censored_w113h.zip This patcher will also censor the game for you, which saves a lot of time in every category. It is recommended that this is done from a fresh install on Steam. To do this, you can go to your Steam library and right click Stick of Truth and click Properties > Local Files > Verify Integrity of Game Files.

The main advantages of the unpatched version are:

• A glitch involving getting grounded that allows you to skip The Giggling Donkey (and also the night time school siege, but a way to make this faster than doing the dungeon hasn't been found)
• A glitch that lets you skip Mr. Slave by interrupting a cutscene
• For some reason, Thief (the fastest class for every category on the leaderboards) is stronger on unpatched, even though all other classes seem to be the same regardless of patch.