When trying to read a FWOL, I must firstly consciously determine the lexical categories of each word, before the second step of determining the meaning of each word. Normally, English and French are written as SVO, and so do not pose the first problem, but this problem recurs when reading English or French poetry. For example, in Latin, if the main verb is located at the end of a long sentence, I must then reread the sentence, even thrice, to understand it.
This lingering hindrance of mine induced my question (in the title above). To wit, on the subject of word order, do FWOL require a different cognitive capability or process?
Is unraveling free word order a separate mental skill, which may be subconscious, but which non-FWOL speakers lack and must learn anew?