Dynamic delay loading the form

I'm trying to dynamic increase the load time of the form. As soon as the form is submited, values will populate in form fields based on the calculation on the list.  At times it's taking little extra seconds for the data to get inserted in the sharepoint list, due to that the values are not populating in the form feilds.  I wanted to dynamically delay loading the form to wait until data to get inserted in the list. Can anyone help me out please