diff --git a/projects/plugins/jetpack/changelog/update-optimize-sharing-hook b/projects/plugins/jetpack/changelog/update-optimize-sharing-hook
new file mode 100644
index 0000000000000..45ec4fd0d5c43
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/update-optimize-sharing-hook
@@ -0,0 +1,4 @@
+Significance: patch
+Type: other
+
+Optimize the Sharing module hook callback.
diff --git a/projects/plugins/jetpack/extensions/blocks/sharing-button/sharing-button.php b/projects/plugins/jetpack/extensions/blocks/sharing-button/sharing-button.php
index 5c9e6dd8cad0c..7c11321fdfd59 100644
--- a/projects/plugins/jetpack/extensions/blocks/sharing-button/sharing-button.php
+++ b/projects/plugins/jetpack/extensions/blocks/sharing-button/sharing-button.php
@@ -202,7 +202,11 @@ function sharing_process_requests() {
 		}
 	}
 }
-add_action( 'template_redirect', __NAMESPACE__ . '\sharing_process_requests', 9 );
+
+// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Only checking for the data being present.
+if ( isset( $_GET['share'] ) ) {
+	add_action( 'template_redirect', __NAMESPACE__ . '\sharing_process_requests', 9 );
+}
 
 /**
  * Automatically add the Sharing Buttons block to the end of the Single Posts template.
diff --git a/projects/plugins/jetpack/modules/sharedaddy/sharing-service.php b/projects/plugins/jetpack/modules/sharedaddy/sharing-service.php
index 2487064126881..db9a37dac1216 100644
--- a/projects/plugins/jetpack/modules/sharedaddy/sharing-service.php
+++ b/projects/plugins/jetpack/modules/sharedaddy/sharing-service.php
@@ -930,7 +930,11 @@ function sharing_process_requests() {
 		}
 	}
 }
-add_action( 'template_redirect', 'sharing_process_requests', 9 );
+
+// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Only checking for the data being present.
+if ( isset( $_GET['share'] ) ) {
+	add_action( 'template_redirect', 'sharing_process_requests', 9 );
+}
 
 /**
  * Gets the url to customise the sharing buttons in Calypso.