Full video of the speedrun attempt from load till end.

I skipped the cutscene and in addition used 3x speed and ran straight to the fort.

Timing from unpause at 0:59 to victory modal at 03:11 is 2:12

Mod note: Timing starts when you gain control of your mouse, when the "paused" icon shows on the top of the screen. Retimed to 2:22