Short movie now over a minute long

Only a third of the short movie is finished, and the file is over 43 MiB (in 8k) and 1:06 long. I have been looking for a better AI text to speech application, but couldn't find any. I can't afford the ones that want money for it. No idea if they offer better results. The free services only bring a voice that sounds like it's just reading, no way to influence the mood of the voice. Self-recorded voices that can be transferred to Kim's voice are only possible with the non-free services. If anyone of you has the possibility to get a really good erotic AI TTS voice of KP, contact me! Please and thank you.