http://stackoverflow.com/questions/7110173/sencha-touch-how-to-avoid-slowing-down-ios-apps-inside-phonegap   Here are some nuggets: PhoneGap/Mobile Web Performance Tips * How Diary.com increased the performance of their PhoneGap app running Sencha: http://www.phonegap.com/2011/06/21/building-the-diary-com-ios-app-using-pg-sencha-touch/ * http://floatlearning.com/2011/03/developing-better-phonegap-apps/     * http://jslint.com/ – to debug your javascript     * http://zeptojs.com/ and http://xuijs.com/ – minimal alternative frameworks to jquery and jqtouch * Disable the accelerometer and location…