This is literally just a rough map of the Green Office Labyrinth that can be found in the Waiting Room. This Map was compiled in version 1.0.0 The hallways are the black lines, with the white areas being the walls of the labyrinth And the yellow areas being the 4 large rooms found in the office. In order to quickly get to the Whale from the entrance room you need to exit the room into the first T-junction and go down the right hallway. Follow the path to the next T-junction and go left. Then turn the corner and go straight to the end, ignoring all the paths that split off from the hallway. When you turn the next corner at the end of the hallway you should be looking straight into the room with the whale.
Suggested fix (unconfirmed): Eat an apple to gain a speed boost and quick-grab the balls, or use a broom to herd them into a large pile before vacuuming. Alternatively, position a big vacuum at the edge of the pool stairs and sweep the balls directly into it.
Suggested fix (unconfirmed): Sprint when entering the door to get through. Alternatively, ensure the backrooms door is opened and the room is loaded before triggering the cutscene.