you can skip getting the jello and balloon if you do the map overlap but it looks slow. you can also save load in the kings castle to reset the cycle and maybe save time, the map overlaps seem to be patched in game 4 and 5.
another thing is the wallace and gromit grand adventure text skip extend frame perfect still works in this game (same with sam and max) but because the game only has one skip button you'd have to use mouse keys or plug in 2 mice to double skip text, the way this tech works is it skips the dialogue using a skip time feature and frame perfectly using 2 skip buttons makes this happen twice and skip more time than usual (more time for more buttons) skipping long animations with no text and pauses in speech (i didn't use this in my run because idk if its allowed)