Hi there - usually when a network gets an "unresponsive script warning" error it means one of the scripts is taken an especially long time to load and is preventing other scripts from loading (Javascript is usually loaded successively.) This can happen when a particular embedded script or video or plug-in is taking an especially long time to load.
You can also drop us a line via the Help Center if there's something in particular you need troubleshooting. Thanks! -Ernie