Steps for Fast load webpage on Slow network

    Make the Web Fast

Step 1.avoid third party java-script for your Website.

For many script-intensive applications, the bulk of the JavaScript code handles user-initiated events, such as mouse-clicking and dragging, form entry and submission, hidden elements expansion, and so on. All of these user-triggered events occur after the page is loaded and the onload event is triggered. Therefore, much of the delay in the "critical path" (the time to load the main page at startup) could be avoided by deferring the loading of the JavaScript until it's actually needed. While this "lazy" method of loading doesn't reduce the total JS payload, it can significantly reduce the number of bytes needed to load the initial state of the page, and allows the remaining bytes to be loaded asynchronously in the background.

To use this technique, you should first identify all of the JavaScript functions that are not actually used by the document before the onload event. For any file containing more than 25 uncalled functions, move all of those functions to a separate, external JS file. This may require some refactoring of your code to work around dependencies between files. (For files containing fewer than 25 uncalled functions, it's not worth the effort of refactoring.)

Then, you insert a JavaScript event listener in the head of the containing document that forces the external file to be loaded after the onload event. You can do this by any of the usual scripting means, but we recommend a very simple scripted DOM element (to avoid cross-browser and same-domain policy issues). Here's an example (where "deferredfunctions.js" contains the functions to be lazily loaded): 

Step 2.use always .png Format for Images.it is Suitable for web pages .

Choose an appropriate image file format.
The type of an image can have a drastic impact on the file size. Use these guidelines: 

PNGs are almost always superior to GIFs and are usually the best choice. IE 4.0b1+, Mac IE 5.0+, Opera 3.51+ and Netscape 4.04+ as well as all versions of Safari and Firefox fully support PNG, including transparency. IE versions 4 to 6 don't support alpha channel transparency (partial transparency) but they support 256-color-or-less PNGs with 1-bit transparency (the same that is supported for GIFs). IE 7 and 8 support alpha transparent PNGs except when an alpha opacity filter is applied to the element. You can generate or convert suitable PNGs with GIMP by using "Indexed" rather than "RGB" mode. If you must maintain compatibility with 3.x-level browsers, serve an alternate GIF to those browsers. 
Use GIFs for very small or simple graphics (e.g. less than 10x10 pixels, or a color palette of less than 3 colors) and for images which contain animation. If you think an image might compress better as a GIF, try it as a PNG and a GIF and pick the smaller.
Use JPGs for all photographic-style images. 
 Do not use BMPs or TIFFs. 

Step 3. All File like HTML,CSS,JAVASCRPT Stored in your Server or fast web server host. like google code ,github,and   

Tip: When you run Page Speed against a page referencing CSS files, it identifies all CSS rules that don't apply to that page.

Step 4. Removing or deferring style rules that are not used by a document avoid downloads unnecessary bytes and allow the browser to start rendering sooner.

Before a browser can begin to render a web page, it must download and parse any stylesheets that are required to lay out the page. Even if a stylesheet is in an external file that is cached, rendering is blocked until the browser loads the stylesheet from disk. In addition, once the stylesheet is loaded, the browser's CSS engine has to evaluate every rule contained in the file to see if the rule applies to the current page. Often, many web sites reuse the same external CSS file for all of their pages, even if many of the rules defined in it don't apply to the current page.The best way to minimize the latency caused by stylesheet loading and rendering time is to cut down on the CSS footprint; an obvious way to do this is to remove or defer CSS rules that aren't actually used by the current page.