(Now there is at least one Spanish edition with a plain language translation as well, edited by Blackie Books, which as a layman in these things I have found enjoyable).
By the way, this happens also with original literature (I mean, not translations). I find most Spanish literature rather pedantic, there tends to be a huge focus on form over content, using the richest vocabulary, the longest sentences, the most complex subordinates, the most subtle nuances, spending 4 pages on describing the movement of a leaf with the wind, etc. while in English literature actual stuff happens and is told in a nice but practical way. As a native Spanish speaker, I read much more Anglo-Saxon literature than Hispanic one, although I guess it's all a matter of taste, of course.
(PS, since the post talks about Borges: he's an exception. He sounds like an Anglo-Saxon writer writing in Spanish).