Edit: I was messing around with the US version of the game, and was quite surprised to find out that this doesn't work for some reason. Maybe I am just out of practice but I wasn't able to fire any sneeze berries after queueing the laptrap menu. Therefore, I think this trick is exclusive to the buggy UK version. This means that there is a trade off between the two versions, Either you can skip the long slide cutscene, or skip the dialogue. I believe that the dialogue skip actually would save more time but is a lot harder to do and can easily kill runs when you mess up. Therefore, unless small amounts of time need to be saved, the US version should be technically a little bit better. ( For reference, my best guesses are that the slide cs skip is ~20 seconds, while perfect dialogue skip on all rings is ~8-10 sec each or ~32-40 seconds total)

This skips the Joni dialogue on the rings of fire, and saves around 4-5 seconds per use. Note: You cannot use this on the yellow bridge, because this trick will cause you to softlock.

the trick works by mapping away when during the dialogue, thus saving time. We would like to just open laptrap but the game doesn't allow you to once you complete the puzzle.

To perform this trick, hit every tile except for one on the ring of fire. Then you need to click laptrap and quickly(you have ~1/3 of a second from what i can tell) click on the last tile. If you perform this correctly, the tile should get hit and the bridge should start to rise. You must map away only after the bridge starts to rise, or else you will crash/softlock. You can use esc while in the laptrap UI in order to skip the initial part of the dialogue.

This trick is 100% consistent, just really hard to perform. It would be easier if we had an easier way to open the laptrap UI. Also, from what I can tell, mapping away can skip any dialogue(results may vary with crashing/softlocking and performing a skip such as this.)

Edit: Not that anyone cares, but for documentation purposes, Ive discoverd that the animation that plays when you click claptrap is responsible for the delayed opening of the UI which allows this skip. if you hit esc you can see that cancelling this animation makes the UI open quicker.

I'll check later today and see if this is possible on the US version too.