Is it possible to improve listening comprehension with almost no audio resources?

I've hit a wall where I can read texts well, but when I look for audio to challenge my listening, I find almost nothing that isn't extremely high-level or too fast. I’m looking for a way to train my ear for the rhythm of Nahuatl without relying solely on slow-motion readings. Are there specific types of media, podcast styles, or techniques you use to force your brain to pick up the cadence of the language faster?