Performance issue with ALV Grid in Module Pool

Hi Experts,

I am using an editable ALV Grid on a screen. This ALV does not have too many fields and is called in modal dialog box.

I call this screen from a standard transaction. The problem is this screen is taking 3-4 seconds to load. I checked that fetching the data is not a problem and only after the call screen statement, the processing becomes very slow. Is this due to ALV grid. Please help as this is urgently needed and I cannot change from ALV to table control. Please suggest if anything can b done?

Regards

Satish