I have a homework table in Laravel-5.7 where 5000 records in the table also have some Relational records that are coming through HasMany() or HasOne() Relation. I tried many types of Eloquent Queries to get fast results. but Postman result time becomes 10200ms to 10700ms but when i direct display this into postman then i am getting this into 500ms to 1100ms. i want to get it in near about 800ms after binding form Laravel Resource or Normal Array.

problem is, when i try to show the Eloquent result direct then it coming around 600ms to 1000ms. but when i bind into an Array and display in postman then its taking 6200ms why? i do not know?

My code ::

  $page = $req->page ?$req->page:1;  // set starting value for look query limit.
  $user = Auth::user()->student()->first();
  $studentProfile = Auth::user()->student()->first();

    #collecting all homework id that have assigned to student.
  $studentHWList =  StudentHomeWork::where("student_id",$studentProfile->id)
    ->select('home_work_id')
    ->get()->pluck('home_work_id');

collecting page by page of homework id.

  $hwLimitList =  Homework::where('session_code', dnc($req->require('sid')))
        ->whereIn('id',$studentHWList )
        ->where('approved', '1')
        ->select('id')
        ->orderBy('updated_at','desc')
        ->get();
   $hwIndexes = $hwLimitList->pluck('id')->forPage($page,$this->recordLimit);

    $paginated = Homework::whereIn('id', $hwIndexes)
                    ->with( "user:id,username,name",
                            'subject:id,subject_name,subject_code',
                            'approveByUser','publishBy')
                    ->with(["likes"=>function($erw){
                             $erw->select('id','home_work_id','complete_status','likes')
                            ->where("student_id", $studentProfile->id);
                    }])
                    ->with(['comment'=>function($qur){
                        $qur->where('parent_id',0)
                            ->where('user_id',$user->id);
                    }])
                    ->orderBy('id','desc')
                    ->get( );

     if( count($paginated))
    {
    $paginationData =  customPagination('getAllHW',$hwLimitList , $page , 
      $this->recordLimit , $user, $studentProfile  );
    return response()->json(["error"=>0,"errmsg"=>"","paginationData"=>$paginationData,
            "response"=>['homework_list'=>$this->customResourceHWBinding($paginated , 
              $req)],'auth'=>userType()]);



 private function customResourceHWBinding($queryData , $request, $user, $studentProfile )
  {
     $document_list =[]; $is_seen=0; $resultData =[];
	foreach ( $queryData as  $query )
	{
  		if( count($query->document)  )
  		{
     	 foreach($query->document as $document){
          		if( $document->changed_filename )
          	{
              $file=""; $fileName ="";
                   $path =env('AWS_URL')."/uploads/".dnc($request->header('dbauth'))."/".
             $query->session_code."/homeWorks/";
              if(is_s3FileExist( $path.$document->changed_filename ) )
              {
                  $fileName =$document->changed_filename;

              }
              $document_list[] = [
                  'oname'=> $document->changed_filename,
                  'ext'=>$fileName?explode('.', $document->changed_filename):"",
                  'url'=>$file,
                  'file_url'=>$document->changed_filename?$path.$document->changed_filename:""
              ];
          }
      }
  }

  $resultData[] =   [
  'id'=>enc($query->id),
  'ids'=>$query->id,
  'pin_user_id'=>"",
  'pin_enabled'=>0,

  'created_by'=>$query->user->name,
  'created_by_image'=>getUserImage($query->user,$query->user->privilege,$request),
  'assignment_date'=>getDateFormat($query->assignment_date,0),
  'assigment_date_edit'=>"",
  'submission_date'=>getDateFormat($query->submission_date,1),
  'submission_date_edit'=>"",
  'class_code'=>$query->class_code,
  'subject'=>$query->subject?$query->subject->subject_name:"",   
  'topic'=>$query->topic,
  'is_student_seen'=> $this->studentHWSeen($query, $user, $studentProfile),
  'updated_at'=> date('d-m-Y H:i:s' , strtotime($query->updated_at)),
  'approved'=>$query->approved,
  'approve_by'=> '',
  'can_approve'=>0,
  'comment_count'=>0,
  'total_like'=>0,
  'documents_count'=>count($document_list)?count($document_list):0,
  'is_draft'=> $query->draft?$query->draft:0,
  ];
 }
  return $resultData;
}

 private function studentHWSeen( $query , $user, $studentProfile)
{
  if(count($query->studentSeen))
   {
    foreach($query->studentSeen as $seen){
        if( user->privilege == 1  )
        {
            if($seen->student_id == $studentProfile->id )
               return 1;
        }
       }
    }
  return 0;
 }

Can anyone tell me how i can improve my code that renders fast in api. the problem in to show data in API.