Update README.md

README.md

@@ -61,7 +61,7 @@ pipeline_tag: text-to-speech
 - 🎙️ **Ultimate Cloning** — Provide reference audio + its transcript for audio-continuation cloning; every vocal nuance faithfully reproduced
 - 🔊 **48kHz Studio-Quality Output** — Accepts 16kHz reference; outputs 48kHz via AudioVAE V2's built-in super-resolution, no external upsampler needed
 - 🧠 **Context-Aware Synthesis** — Automatically infers appropriate prosody and expressiveness from text content
-- ⚡ **Real-Time Streaming** — RTF ~0.13 on RTX 4090 with [Nano-vLLM](https://github.com/a710128/nanovllm-voxcpm)
+- ⚡ **Real-Time Streaming** — RTF as low as ~0.3 on NVIDIA RTX 4090, and ~0.13  accelerated by [Nano-VLLM](https://github.com/a710128/nanovllm-voxcpm)
 - 📜 **Fully Open-Source & Commercial-Ready** — Apache-2.0 license, free for commercial use
 
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