Hello, I'm using a text-to-speech voice provided by Cartesia, with their Sonic 3 model. The voice is quite impressive, but there are a lot of irregularities in the speed and volume, which can be a bit erratic at times. However, Sonic 3 doesn't seem to properly handle volume and pacing instructions. Do you know if there's a way to fix this issue, or do we just have to wait for Cartesia to address it in their model?