IDM - AD

Hello ,
Recently, i implemented IDM solution. It is IDM one way trust with AD.

So mostly all works fine but one problem is user login time.

This is taking more time after entering the user password. Is there anything i can do to improve this performance ?

[root@serve1 ~]# time ssh -l AD-user Linuxserver1 exit;
Password:

real 0m11.656s
user 0m0.014s
sys 0m0.002s