readme perf update

README.md

@@ -10,7 +10,7 @@ An [exceptionally fast](#performance), tiny ([~7 KB min](https://github.com/leeo
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 ### Introduction
 
-μPlot is a very fast and memory-efficient [time series](https://en.wikipedia.org/wiki/Time_series) chart based on [Canvas 2D](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D); from a cold start it can create an interactive chart containing 150,000 data points in 50ms. In addition to fast initial render, the zooming and cursor performance is by far the best of any similar charting lib; at ~7 KB (min), it's likely the smallest and fastest time series plotter that doesn't make use of WebGL shaders or WASM, both of which have much higher startup cost and code size.
+μPlot is a [fast, memory-efficient](#performance) [time series](https://en.wikipedia.org/wiki/Time_series) chart based on [Canvas 2D](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D); from a cold start it can create an interactive chart containing 150,000 data points in 40ms. In addition to fast initial render, the zooming and cursor performance is by far the best of any similar charting lib; at ~7 KB (min), it's likely the smallest and fastest time series plotter that doesn't make use of WebGL shaders or WASM, both of which have much higher startup cost and code size.
 
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 <h3 align="center">166,650 point bench: <a href="https://leeoniya.github.io/uPlot/bench/uPlot.html">https://leeoniya.github.io/uPlot/bench/uPlot.html</a></h3>