diff --git a/README.md b/README.md
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--- a/README.md
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@@ -173,4 +173,8 @@ byte | value | description
 
 ## MSRV
 
-Requires rust >= 1.63 (debian stable)
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+Requires rust >= 1.63 (debian stable)
+
+## Profile-Guided Optimization (PGO)
+
+According to the [tests](https://github.com/lovasoa/serde-sqlite-jsonb/discussions/1#discussion-6500343), PGO helps with achieving better performance - up to ~20% speed up. So if you want to optimize the library usage - consider enabling PGO for your application.