Performance issue with JqueryMobile and PhoneGap

Performance issue with JqueryMobile and PhoneGap

I build a app using PhoneGap and JqueryMobile containing several html and js pages. And in all the Html pages I have included the JqueryMobile js files in the Script tag. 

eg: <script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>

<script src="http://code.jquery.com/mobile/1.1.0-rc.1/jquery.mobile-1.1.0-rc.1.min.js"></script>

Clicking on any button to change the page always takes around 5-10 seconds to react both on iPhone and on Android phones.

Navigation from one screen to another taking lot of time.My application only with Phonegap and html files without Jquery was superfast, once JqueryMobile is added performance is slow down. :(

Are there any hints/howtos/tricks to increase speed? It's really unusable for an often used app.

 Thanks.

 Surya