Update README.md

README.md

@@ -272,7 +272,7 @@ evalplus.evaluate \
 ## Inference Performance
 
 
-This model achieves up to 1.9x speedup in single-stream deployment and up to 1.53x speedup in multi-stream asynchronous deployment, depending on hardware and use-case scenario.
+This model achieves up to 1.57x speedup in single-stream deployment and up to 1.53x speedup in multi-stream asynchronous deployment, depending on hardware and use-case scenario.
 The following performance benchmarks were conducted with [vLLM](https://docs.vllm.ai/en/latest/) version 0.7.2, and [GuideLLM](https://github.com/neuralmagic/guidellm).
 
 <details>