Android unstable volume on internal speaker

[j7n]

I notice that the volume on the built in speaker on my Xiomi Redmi 14C is noticeably jerky. I do realize that the sound of the speaker can only be crap. But the volume jumps make it unnecessarily worse. It sounds like a crude expander is active. Not a compressor, but an expander. When a voice (or voice-like frequencies) comes into the foreground, the loudness rapidly increases and falls back down. This also happens in ringtones. My old Samsung phone doesn't do this.

For example, the song by 4 Non Blondes "What's Up" sounds like this, capital letters representing louder sound.

when I'm lying in bEd just to get IT All Out what's in my head, and I, I'm feeling a little peculiar. and so i wake in the mORNing and I step outside, i take a deep breath and i get real high, and i scream from the top of my lungs: what's goinG ON. and I sAy hey-YEAH-YEAH-YEhe hey-yEAH-yeah. i said HEY, what's goINg ON.

Is this a helpful setting that can be tweaked?