Some Discworld characters since they are partially why this exists:
Vetinari: Absolutely crushes the speedrun without any effort. That man discovers an insane new exploit and replies by casually accepting it as a few befuddled onlookers watch in awe. After finishing marginally ahead of the next best, he seems confused why the other person didn't simply do it his way. 10/10.
Death: ***** off immediately from the speedrun, did not understand the goal. He makes a small farm by a village, adopts a cat, and slays a villager occasionally for good measure. He is still inexplicably
good at this, though. Never kills their Iron Golem even if it causes him trouble. 1/10.
Samuel Vimes: Understands the goal but thinks the game should make it much bloody easier if that's what it wants. Gets angry with the game for awhile after something doesn't go the right way but ultimately finishes with relatively decent time. In doing so he uses a hamfisted approach to basically every finer mechanic of the game. 7/10.
Detritus: Breaks the computer instantly. He tried his best. 0/10.
Angua: Angua thinks it is a silly damn game but picks everything up quickly. She has unrefined skill but very good reaction time. Probably a bit overprotective of her life but still has to restart a few times for overzealous combat. When she does manage to finish, it won't be a record, but it will be a moral victory, which is good enough. 5/10.
Carrot: Does not start the speedrun, spends the entire time admiring the modding community. Particularly interested in content add-ons. Quite literally never adds them to the game and yet has an encyclopedic knowledge of all of them. Memorizes several dozen redstone tutorials over the course of three months. Has never booted up the game. 0/10.