Bug fix/optimisation in Crodova/JQuery Android mobile app

Hi! We are looking for the good mobile developer with cordova/jquery mobile experience. We have an app (template of app) and need some optimization / bug fix. Application used cordova (3.6.4), some cordova plugins + jquery mobile as a UI framework. Only 3 items: 1) We doesn't like how application works when you scroll on screens with many items (30-40 simple items). See video 00:05 - 00:30. You can see that part of screen not refreshed immediately - big green/grey gaps. 2) We doesn't like how application switch from one screen to other - see video 00:25, 00:32, 00:41 etc. 3) On some devices, application crash when user try to enter email in text box (keyboard appear). You'll have to fix this bug. See video: 02:10-02:35. We would like to continue work on this project with a good freelancer so as project still not complete. Debug video: [login to view URL] To win this project please: - read description carefully and be sure u'll able to complete it in time. - please provide 1-2 sample of your cordova/jquerymobile projects. - note what android device(s) you have for testing. Only individual freelancers please. Thanks.