"loading time" is a broad term. If they just want to analyze the backend server time, the Web Requests Dashlet would be a good starting point. If you want to analyse it from the users perspective (as you should!) the User Actions Dashlet shows aggregated values for your User Actions (sounds like especially load actions are interesting for you):
Is that what you're looking for?
Thanks for the response.
Also, we would like to know, when there is a slowness in the page loading, how to identify if the issue is at application end or from user side.
Could you please explain the steps how to analyse the issue?