SAP B1 APPLICATION IS RUNNING SLOW IN SERVER AFTER UPGRADE

Hi,

The sap application is running slow in server after upgrading it from 9.0 to 9.1 it's taking 5-10 secs to open a document after clicking it and its taking more time in client system.

what are the steps to be taken so that the application will run without any delay.

Regards,

Karthik B