Need to increase API limit

I’m trying to increase the API call limit. Is there any way I can do that?
This is not for my personal use, I’m trying to build an app for my startup. So I was wondering if there is a paid version of API…

A paid version to increase the API rate is not available. To ensure fairness and maintain optimal service performance, we apply uniform rate limits for all users and are unable to provide custom rate limits on an individual basis.

I want to integrate the Upstox API into my app, but the free version gets exhausted every 1–2 hours. How can I manage this limitation? A paid version of the API would be ideal, but it’s not available yet. What would you suggest