Problem updating datagrid of master form

[sopho24]

I have 2 forms: 1- Main form viewing a datagrid of different values of database X 2- A secondary form used for adding new data into database X When any data is entered in Form2 and Form2 is closed; it's needed to update datagrid with new values in Form1. But it doesn't update quickly, a 3-4 second late. Using Access database, I've found a nasty dirty solution : Having a timer and updating datagrid periodically. Is this a problem about Access slow query time or any problem about forms or etc? Any idea ???