More columns in sap.m.Table

Hi,

I have to include around 15 columns in sap.m.Table. But it's not displaying the data as expected. It's reducing the column width. I see we can use sap.ui.Table. But in future we are going to make this app to work in mobile as well. So I think it's better to with sap.m.Table only. Could you please let me know how can I achieve the above behavior.