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-rw-r--r--doc/src/declarative/qdeclarativeperformance.qdoc12
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diff --git a/doc/src/declarative/qdeclarativeperformance.qdoc b/doc/src/declarative/qdeclarativeperformance.qdoc
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--- a/doc/src/declarative/qdeclarativeperformance.qdoc
+++ b/doc/src/declarative/qdeclarativeperformance.qdoc
@@ -117,4 +117,16 @@ a Loader as needed.
\o Fast data access - ensure the data model is as fast as possible.
\endlist
+\section1 Image resources over composition
+
+If possible, provide a single image resource, rather than using composition
+of a number of elements. For example, a frame with a shadow could be created using
+a Rectangle placed over an Image providing the shadow. It is more efficient to
+provide an image that includes the frame and the shadow.
+
+\section1 Limit JavaScript
+
+Avoid running JavaScript during animation. For example, running a complex
+JavaScript expression for each frame of an x property animation.
+
*/