While the rendition of a name in the target language is expected to phonemically resemble its pronunciation in the source language, difference in phonotactics between the two languages would be compromised during transliteration, and incompatible phonological structures might result in extra syllables in the transliterated name.
name transliteration tends to be more conventional than innovative, such that the same chunk is often transliterated in the same way even when embedded in different names.