How to get the best quality?

[megapro17]

There are so many options and nobody tells which works the best. I'm currently working with speech female voice, with some noice.
I did cleaned original audio with iZotope a bit, with assistant
I guess firstly I need to use crepe as it should give better pitch?
svc pre-hubert -fm crepe
Then I should enable new model instead of legacy default one?
svc pre-config -t so-vits-svc-4.0v1
What is quickvc? What does it give?
svc pre-config -t quickvc
Also there were option -na which someone said works better on female voice

Then I supplied 30 minutes of audio and it's sounds okay but not the best after 100 epochs. And it changed barely after 243