Voynichese is a numeric cipher?

[ololololo]

Since, if it is a cipher, it is almost certainly a complex one (otherwise it would have been cracked already), it would always take some time to decipher it.

I suppose so. I'll note that my cipher is, again, a visual model. It doesn't try to copy the VMS text as much as possible, it just shows how "similar" the result we can get using Roman numerals is compared to. Basically, it's a very simplified cipher.
The notorious features of Voynichese are also present in this cipher - repetitions, similar words, and something like the LAAFU effect (for example, numbers with sh and o will be at the beginning of the "line" (actually anagrams)) 
The purpose of this cipher is not to match the manuscript as closely as possible, but to look for differences and similarities. This will at least allow us to talk more clearly about the possible structure of the VMS cipher.
But, unfortunately, there are very few texts available at the moment, so we will focus on visual similarities... 
But it copies Currier A quite well, which seemed like a pretty unattainable task to me (because most of the ciphers before that were based on Currier B, like the Naibbe cipher, for example).