diff --git a/README.md b/README.md
index 9b68383..9919cdb 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,8 @@ or
 ```bash
 gem install case_transform
 ```
+
+And for faster performance, checkout [Case Transform with Native Extensions](https://github.com/NullVoxPopuli/case_transform-rust-extensions)
 ## Usage
 
 ```ruby