Looks pretty good to me, for the most part. The timing of the dialogue seems good for the most part (and I especially liked how you handled the above mentioned Boom-Boom-etc. line), though it seems to me there should be a touch more of a pause before "See ya!", since it's both a closing line, and also sort of a separate statement from what comes before.
I agree that the the text speed seems a little slow, though I can understand the problem with not wanting to double the speed. Perhaps a possible solution is to make it so the text never scrolls up and off the screen, but instead always pauses and requests a button input before the screen fills up entirely, as seen in the cutscenes in the first SMWCP, and also the draft
Deedle-Ball cutscene. This could allow a faster text speed without risking that the player miss anything due to the text scrolling by too quickly, as the text never disappears unless the player tells it to.
Also, "Sevvry" should be "Sverry" ( = "Sverige" = Sweden; analagous to "Dan-Mark" and "Norveg").