Adjust JSON API rate limit?

I'm currently building a Swift Forums client. The project is still in early development; I have not yet implemented caching.

This, combined with Discourse not returning category names in topics—requiring the programmer to manually fetch each category by its ID in order to display it alongside the post—has me getting Too many requests for the category endpoint.

Is there any way around this? Would logging in alleviate the rate limit? The requests are being made "anonymously", currently. If not, can the rate limit be adjusted?