Optimizing Cost and Performance when Deploying Genny API for AI Voice Generation Project

am trying to deploy Genny API to generate AI voices for tutorial videos and Incredibox Game digital content, but am facing some challenges in optimizing costs, processing speed and voice quality.

Some points I would like to discuss with the community:

Does anyone have experience in managing costs when scaling Genny API? Do you have any tips to reduce costs while maintaining quality?

How to optimize workflow and choose effective voice/voice cloning when creating multiple contents at the same time?

Do you have any tools or methods to help track margins or calculate markup from factors such as fees, exchange rates, warranties, etc.?

I look forward to receiving practical sharing, implementation tips or lessons from your projects to help me improve workflow and API usage efficiency.