I just updated my cca from v0.1.1 to 0.4.3, my polymer app on android used to take few seconds to load index.html(un-minified), now it takes >1 minute to load. I didn't update polymer(v0.4.2), just updated cca and all used cordova plugins.
The loading time for minified version(by vulcanize with "strip: true" flag) looks without problem, problem only occurs on minified version.
btw: both are crosswalk enabled. I used nearly half kinds of polymer controls, index.html is 215k, index.js is 174k.
this problem took me one day unsolved, please help.