planing to extend this structure with products, news, blog, gallery etc…
so the question is not only performance, but and multilingual convenience.
Or it is better to have only 1 table with language prefix. but that will be a lot of work if need to add more languages in the time. also can be changed main language in time.
thank you a lot for sharing your idea how to work with multilingual system. I had this also in mind same like your structure but i refused it because of changing default language.