Windows Plesk 7.6.4 control panel is very slow

[abidlm]

Hi All,

After upgradation of plesk 7.5 to plesk 7.6 on our windows 2003 server, Plesk control panel is very slow .
Add domain , creating mail , changing FTP user and password takes long time.

How to increase performance of control panel.

Any Suggestion

Regards,