my site www.starstyle.com loads 5x or more slower in Android browser than Safari, IE, Firefox, Chrome etc
May be you could try fixing issues mentioned in Google PageSpeed Insights,
You should minify the css.
You can you online tool like http://cssminifier.com/
Your caching plugin also has capability to minify css and js. you can enable it. even you can set to minify only css.
But be aware of it. sometime it breaks the website. so if plugin do not work then manually minify it.
CSS if very rarely the issue causing a page to load slowly. try using one of the available online speed test sites to break it down to individual file load times such as the one at http://tools.pingdom.com/fpt/#!/c3STr2/jafty.com I would think you could run it from your phone. Hope that helps.