Slider Flashes when changing

Hi,

this is my site
http://nav33n.com

I have activated the slider on the front page. My problem is when the image changes it flashes and it looks ugly. Please help me fix this.

I know it has something to do with this https://github.com/woothemes/FlexSlider/issues/848

But I am unable to apply the fix to the theme, please help.