asp.net gridview提取数据的时间太长

it seems common issue so I am surprised I didn't find solution already, maybe someone can help me out. I have a gridview that displays list of users of the app, this list is very big, and takes forever to load the data. Otherwise, data is paged through and once loaded everything goes fine. To help admins, I made search box and that works well. Only issue is initial load of data, it seems that asp.net is retrieving all the records initially.it seems common issue so I am surprised I didn'