diff --git a/README.md b/README.md
index 6d7fa29..5226940 100644
--- a/README.md
+++ b/README.md
@@ -119,6 +119,8 @@ trigger-wait $key $port
 - `$key` is a secret string that the sender will have to match.
 - `$port` is the local listening port (between 1024 and 49151).
 
+*Note:* The reading delay is set to 0.5 seconds not to overuse the processor.
+
 *Exemple:*
 
 Let's say you want to wait for a signal on port 9999 then launch some command (for example `read input1`).