Google want to deliver the best websites for the people who use their search engine. This is true both of traditional websites and of mobile sites. Below I have provided you links to 2 pages. One will help you understand what Google is looking for and the other will help you to get it done.

Here are the links:

https://developers.google.com/speed/docs/insights/mobile

http://googlewebmastercentral.blogspot.de/2013/08/making-smartphone-sites-load-fast.html

If you need help with any of your marketing needs let me know.