Hi All,

I've written & executing the test class for below code and receiving " FATAL_ERROR System.LimitException: Apex CPU time limit exceeded" 
Any idea what I'm missing out in code?

Trigger code:

trigger Accountteamupdate on Account_Relationship__c (before insert) {
    List<AccountTeamMember> accountTeamList = new List<AccountTeamMember>();
    List<AccountTeamMember> finalaccountTeamList = new List<AccountTeamMember>();
    List<user> UserList = [select User_ID_18__c,Taylor_Business_Unit__c, Function__c  from user];
    
    if(Trigger.isInsert)
        
    {
        for(Account_Relationship__c ar:trigger.new) {
            ar.OwnerId=ar.Assigned_Sales_Rep__c;
            AccountTeamMember Teammemberadd=new AccountTeamMember();
            Teammemberadd.AccountId=ar.Account__c;
            Teammemberadd.UserId=ar.Assigned_Sales_Rep__c;
            accountTeamList.add(Teammemberadd);
        } 
        
        for (AccountTeamMember am : accountTeamList )
        {
            
            for (user ul : UserList)
            {
                
                if  (am.UserId == ul.User_ID_18__c)
                {
                    AccountTeamMember Teammember=new AccountTeamMember();
                    Teammember.AccountId=am.AccountId;
                    Teammember.UserId=am.UserId;
                    if (ul.Taylor_Business_Unit__c != null && ul.Function__c != null )
                    {
                    Teammember.TeamMemberRole=ul.Taylor_Business_Unit__c +' '+ ul.Function__c;
                    }
                    else 
                    {
                    Teammember.TeamMemberRole = 'Unspecified';
                    }
                    
                    finalaccountTeamList.add(Teammember);
                }
            }
        }
        
        insert finalaccountTeamList; 
    }
    
    }

Test Class code:

@isTest
public class sampleTestMethodCls {
    static testMethod void testAccountTrigger(){
        List<Account_Relationship__c> AR = new List<Account_Relationship__c>();
        for (integer i = 0 ; i<=200 ; i++)
        {
        Account_Relationship__c  ct = new Account_Relationship__c (Account__c='xxxxxxxx',Assigned_Sales_Rep__c='xxxxxxxx');
         AR.add(ct);   
        }
        Test.startTest();
        insert AR;
        Test.stopTest();
        
    }    
}