Dashboard caching for a particular time range

I have created a dashboard using kibana 4 and was wondering if the results are being cached for a particular time stamp. I am sharing the dashboard link with my team members and it takes too long for the dashboard to load every time it is loaded using the link. Is their a way I can reduce this time?

Kibana doesn't do any caching, but elasticsearch might. There are a number of things that could slow down a dashboard, it might help to try to narrow it down. Do you have a lot of visualizations? Is there one particular visualization that's taking a long time? You can click the "Spy tab" at the bottom of any visualization and click on the "Statistics" tab to see how long the request for that viz took.