Why does KPI grid loading takes long time and makes the browser hang?

Why does KPI grid loading takes long time and makes the browser hang?

After about 500 rows loaded into the KPI grid, the application will stop responding and displays a script error. Then, after a brief period the control to the IE will resume back. The resolution to this Issue is shared as below: - There is a limitation of handling the huge xml while rendering in KPI Grid for more than 500 rows as it generates the data in XML format. We can update the “"Max Rows"” property value in arc.properties to '500', the performance shall be improved.