There are many virtual methods which does DOM tree traversal and node-specific actions. But some of there method has only a few overrides other than one for tree traversal its self. Such methods includes insertedIntoDocument, insertedIntoTree, removedFromDocument, removedFromTree, willRemove, attach and detach. It looks possible to de-virtualize (and even inline) these method by - pull tree traversal out from ContainerNode/Element - Employ a node flags to declare the existence of overrides - inline methods for major DOM classes (that include Text and Element) Since a large part of DOM nodes don't have node-specific overrides other than major classes above, These inlining will gain certain performance win. I'll start from easier ones and see how it work.