diff --git a/lib/builder/builder.js b/lib/builder/builder.js
index 221e9a27d..d79e39c19 100644
--- a/lib/builder/builder.js
+++ b/lib/builder/builder.js
@@ -59,6 +59,10 @@ function composeTaskList({dev, selfContained, jsdoc, includedTasks, excludedTask
 	selectedTasks.executeJsdocSdkTransformation = false;
 	selectedTasks.generateCachebusterInfo = false;
 	selectedTasks.generateApiIndex = false;
+
+	// Disable generateResourcesJson due to performance.
+	// When executed it analyzes each module's AST and therefore
+	// takes up much time (~10% more)
 	selectedTasks.generateResourcesJson = false;
 
 	if (selfContained) {