It's not so much the text speed on its own, but Fi's constant interruptions to make banal statements at slow speeds that kill the immersion. It doesn't ruin the game, but it's oddly bad design given how great the rest of the game is.
I don't think the game has the same highs, but even as a big TP fan, I'd concede SS is the better game.
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Praise the Black Turtle, Game of the Decade Guru Champ.
(Well, I never promised creativity, did I?!)