I've tried your Animate SWF content in two browsers (Firefox, Chrome) and I can't see any of your ill effects you are describing (choppy, drop frames and so on).
In general terms: You should re-orientate from SWF to HTML5. Maybe use tools like Adobe Dreamweaver if that helps. Why are you building a website as "Flash SWF" when the support for Flash Player is running out in less than a year. This is a deadend road. Your content could be so easily build with contemporary means.
Okays thanks. not Smart enuf for html 5. Though I did convert this many times to html5.
You just said two things that are the exact opposite of each other.