Query optimization - Query is taking long time even there is no table scan in execution plan

Hi All,

The below query execution is taking very long time even there are all required indexes present. 

Also in execution plan there is no table scan. I did a lot of research but i am unable to find a solution. 

Please help, this is required very urgently. Thanks in advance. :)

WITH cte
AS (
SELECT Acc_ex1_3
FROM Acc_ex1
INNER JOIN Acc_ex5 ON (
Acc_ex1.Acc_ex1_Id = Acc_ex5.Acc_ex5_Id
AND Acc_ex1.OwnerID = Acc_ex5.OwnerID
)
WHERE (
cast(Acc_ex5.Acc_ex5_92 AS DATETIME) >= '12/31/2010 18:30:00'
AND cast(Acc_ex5.Acc_ex5_92 AS DATETIME) < '01/31/2014 18:30:00'
)
)
SELECT DISTINCT R.ReportsTo AS directReportingUserId
,UC.UserName AS EmpName
,UC.EmployeeCode AS EmpCode
,UEx1.Use_ex1_1 AS PortfolioCode
,(
SELECT TOP 1 TerritoryName
FROM UserTerritoryLevelView
WHERE displayOrder = 6
AND UserId = R.ReportsTo
) AS BranchName
,GroupsNotContacted AS groupLastContact
,GroupCount AS groupTotal
FROM ReportingMembers R
INNER JOIN TeamMembers T ON (
T.OwnerID = R.OwnerID
AND T.MemberID = R.ReportsTo
AND T.ReportsTo = 1
)
INNER JOIN UserContact UC ON (
UC.CompanyID = R.OwnerID
AND UC.UserID = R.ReportsTo
)
INNER JOIN Use_ex1 UEx1 ON (
UEx1.OwnerId = R.OwnerID
AND UEx1.Use_ex1_Id = R.ReportsTo
)
INNER JOIN (
SELECT Accounts.AssignedTo
,count(DISTINCT Acc_ex1_3) AS GroupCount
FROM Accounts
INNER JOIN Acc_ex1 ON (
Accounts.AccountID = Acc_ex1.Acc_ex1_Id
AND Acc_ex1.Acc_ex1_3 > '0'
)
AND Accounts.OwnerID = 109
GROUP BY Accounts.AssignedTo
) TotalGroups ON (TotalGroups.AssignedTo = R.ReportsTo)
INNER JOIN (
SELECT Accounts.AssignedTo
,count(DISTINCT Acc_ex1_3) AS GroupsNotContacted
FROM Accounts
INNER JOIN Acc_ex1 ON (
Accounts.AccountID = Acc_ex1.Acc_ex1_Id
AND Acc_ex1.OwnerID = Accounts.OwnerID
AND Acc_ex1.Acc_ex1_3 > '0'
)
INNER JOIN Acc_ex5 ON (
Accounts.AccountID = Acc_ex5.Acc_ex5_Id
AND Acc_ex5.OwnerID = Accounts.OwnerID
)
WHERE Accounts.OwnerID = 109
AND Acc_ex1.Acc_ex1_3 NOT IN (
SELECT Acc_ex1_3
FROM cte
)
GROUP BY Accounts.AssignedTo
) TotalGroupsNotContacted ON (TotalGroupsNotContacted.AssignedTo = R.ReportsTo)
WHERE R.OwnerID = 109

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Please mark it as an answer/helpful if you find it as useful. Thanks, Satya Prakash Jugran