Hello,
I'm using J3, and after submitting the Options of Answers, the browers will alert me that a script may cause the browser to stop response. The error code is where as below:

 http://www.herbalnc.com/media/system/js/mootools-core.js:96

Though after I click continue the server will go on, but I do feel the slow response with Answers options.
Hope you can investigate.