Windows Phone 8 HTML5 - Local and Remote HTML Performance

Question

I have an HTML5 game created using the Windows Phone HTML5 App template. This essentially just loads the HTML game into the WebBrowser control.

When loading index.html locally with a relative URI, performance is depressing when the profiler shows about 10 frames per second:

When downloading exactly the same HTML, only from my remote server, I get a good 45 frames per second.

Does anyone know what a mismatch is and how to fix it?

Edit → When loading all images remotely, performance problems disappeared. The problem is downloading images locally, not remotely. Amazing.

Edit 2 -> Base64, encoding images, since data URIs also have the same massive performance gain. Unfortunately, this does not work for us, but shows that something is seriously wrong with uploading images locally.

Answer 1

Did you find the cause of the problem?

Firstly, to make sure you have no problem with xss, can you configure Fiddler, for example, and track traffic on your phone?

Secondly, a crazy idea: will a simple HTTP server work in your own application? you can set the web browser to load your game from it and see how it works compared to downloading from a local