Hi mukeshmohanbhai..,

1) We checked your site in mobile browser as well the safari and all were working fine without any issues as you have mentioned. Please clear all your browser cache and then have a look at that page.

2) Please follow the instructions in the below knowledge base link for increasing the theme speed.

http://wesupport.wpengine.com/knowledge-base/how-to-increase-the-theme-speed/