diff --git a/examples/models/models_waving_cubes.c b/examples/models/models_waving_cubes.c
index 5dc1fc4aa..521a4afd5 100644
--- a/examples/models/models_waving_cubes.c
+++ b/examples/models/models_waving_cubes.c
@@ -89,6 +89,8 @@ int main()
                             };
 
                             // Pick a color with a hue depending on cube position for the rainbow color effect
+                            // NOTE: This function is quite costly to be done per cube and frame, 
+                            // pre-catching the results into a separate array could improve performance
                             Color cubeColor = ColorFromHSV((float)(((x + y + z)*18)%360), 0.75f, 0.9f);
 
                             // Calculate cube size