Wouldn't a speedrun of this just be an autoscroller? Are there any strats for this to speed it up?

Yes there are strats that can be used to speed the game up. First off choosing the correct dialogue option can make the game faster and save up a ton of time if you choose the best dialogue option. Second there are also segments of the game where you have to solve a puzzle, like parts where you actually walk around and do something, so if you know where you are going and how to complete the puzzle then that also saves time, instead of walking around doing things that doesn’t help you advance to the next part of the game. But is there big skips that could save a lot of time? Well i don’t know that really hasn’t been discovered yet. You expect a game like this to not be a game you could speedrun but yes it can be done.