How I Solved a Hidden Memory Bottleneck in Flask + StyleTTS2 TTS Pipeline

May 20, 2025 · 2 min read · When building an AI-based backend with StyleTTS2 integrated into Flask, I encountered a puzzling issue: my server became sluggish and unresponsive after just a few TTS requests. Here's the full story of how I diagnosed and fixed it — and how you can ...