Which is best RenderAction or Render Page using Ajax

 i make one page and i render  8 to 10 partial pages through ajax so it's good or not and it's take a too much time when data is more? 

You can use partial view to send through AJAX, follow below link:

 

http://www.c-sharpcorner.com/UploadFile/manas1/sending-partialview-using-jquery-ajax-request-in-Asp-Net-mvc/