As is common with point'n'click runs, the main timesave comes from optimizing what things to do in what order. This game is no exception, and to my knowledge there are also no useful glitches. However, there is still some tech to this run, and the purpose of this thread is to document all of it. In case anything else is found in the future it can simply be added to this thread.

• Fast screen transition

This is a classic that is present in most point'n'click games: changing scenes by double-clicking makes the transition happen instantly, thus skipping the walking animation.

• Frame-perfectly skip all dialogue

There are three known ways to skip dialogue and cutscenes in this game: left-click, right-click, and spacebar. What is special about space is that holding it skips all dialogue as soon as it comes up. An example of this can be seen in this run (with input viewer).

Notably, this seems to be an "accelerating feature" similar to writing text where holding a key takes a split-second before the key is entered continuously. As such, holding space to skip dialogue should happen ~1 second before the actual dialogues would show up for it to skip all dialogue frame-perfectly. Holding space can be buffered throughout some, but not all screen transitions; moreover, clicking on things while holding space does not always work. Thus it is recommended to only hold space when needed.

• Language differences

Because of frame-perfect dialogue skipping, even if there were dialogue differences between different languages they would likely not matter. However, there is a more interesting version difference: in the German & Italian versions can you talk to Victoria after realizing that the door to William's chamber is locked (Chapter 1, ~6-7 minutes into the run). In all other language versions, trying to talk to her gives the "I should leave her alone for now" dialogue, but in German & Italian checking the door gives an additional dialogue which roughly says "I should ask Victoria about the key" (Samuel does not say that in other versions) which unlocks going to Victoria early. This is a big timesave as well as an argument for German/Italian being the fastest versions for speedrunning.