I'm afraid I have nothing to reassure you with. Speed is not doable.
I am an amateur and any advice can help me... give me an idea. I can't promise anything, but I'll be glad if someone shares his vision for the future of the game.
You're the only one who mentioned music.
deppl and translate.yandex. They seem to be the best in the business.
I use them to translate into English > then use them to find the best version. I understood that the machine will not add beauty to my words, but I have not seen in the translation to lose the essence of the narrative.