Updated readme.md

README.md

@@ -30,7 +30,7 @@ Very fast, header only, C++ logging library. [![Build Status](https://travis-ci.
 * Headers only, just copy and use.
 * Feature rich [call style](#usage-example) using the excellent [fmt](https://github.com/fmtlib/fmt) library.
 * Optional printf syntax support.
-* Extremely fast asynchronous mode (optional) - using lockfree queues and other tricks to reach millions of calls/sec.
+* Fast asynchronous mode (optional)
 * [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
 * Conditional Logging
 * Multi/Single threaded loggers.