jquery mobile 1.4.5 single-page template href querystring ajax

I am a newbie to JQM (I use 1.4.5) and my webapp (asp.net C# apache Cordova) contains many separate pages of .cshtml (single-page template) only. I am testing my webapp on a Samsung Galaxy Grand using Android 4.2.2

A. I am not sure about my understanding of 'linking pages', even after reading all the JQM docs on this and also after reading up many, many posts on this topic about passing querystring values to another page; mainly because I find that ALMOST ALL the examples are directed towards providing answers for internal pages (Multi-Page template) within a single html page.

So I request some of you JQM experts to confirm or correct the following understanding of mine....

From the JQM docs I understood that

1. I could use in any link (e.g button), href="page2.cshtml?par1=1&par2=2"; and JQM will automatically use Ajax for this link to work.

2. I also understood that use of querystring is always allowed in such cases of different html pages of the same domain and it will work via Ajax automatically ; so long as the attr such as rel="external", data-ajax="false" etc. are not used in the same link.

3. but querystrings are not allowed in case of the internal pages (multi-page template) only....;

4. and if I need to use the above href to link to a page in another domain e.g. http://ift.tt/1OET0Qv, then I need to use rel="external".

Are all my above points (that reflect my understanding) CORRECT? KIndly confirm ro please correct me ...

B. In my app, I find that most of the links work according to my understanding as above, to connect to different pages in the same domain; and I assume it happens via Ajax. Is it correct? I am also able to use the querystring params in page2 ( i.e. To-Page).

1. But in one case, though it works, in the To-Page the Panel features do not operate correctly, unless I introduce rel="external' in the href link !!! I suppose it means it IS NOT AJAX anymore? Also I am unable to find the reason..

2. Further independent of the above topic, I face another issue. The loading time (i.e. Time taken to display the To-Page) varies.

Mostly it is OK, but at times the loading-circle goes on forever.... and I presume it has crashed....??? then If I go back using the back button and come forward again, many times it loads immediately...!!!!! Any thoughts or suggestions.....?

Thanks in anticipation... Ratna