Improve TikTok Native Caption Extraction Speed/Reliability

I want Supadata to extract native captions for TikTok videos more reliably, specifically for videos like https://www.tiktok.com/@doreenk.kalembe/video/7608717658577440030. Currently, Supadata takes ~20 seconds (falling back to AI generation) while competitors like tokscript.com finish in under 6 seconds using native captions. This speed increase is critical for my project's requirements.