diff --git a/backend/closure_service.py b/backend/closure_service.py
index f4ecf984..9ca652a7 100644
--- a/backend/closure_service.py
+++ b/backend/closure_service.py
@@ -139,14 +139,15 @@ def check_and_finalize_closure(grievance_id: int, db: Session) -> dict:
         ).scalar()
         
         # Get all confirmation counts in a single query instead of multiple round-trips
-        from sqlalchemy import case
-        stats = db.query(
-            func.sum(case((ClosureConfirmation.confirmation_type == 'confirmed', 1), else_=0)).label('confirmed'),
-            func.sum(case((ClosureConfirmation.confirmation_type == 'disputed', 1), else_=0)).label('disputed')
-        ).filter(ClosureConfirmation.grievance_id == grievance_id).first()
-        
-        confirmations_count = stats.confirmed or 0
-        disputes_count = stats.disputed or 0
+        # Optimized: Use group_by instead of sum(case) for better aggregation performance
+        counts = db.query(
+            ClosureConfirmation.confirmation_type,
+            func.count(ClosureConfirmation.id)
+        ).filter(ClosureConfirmation.grievance_id == grievance_id).group_by(ClosureConfirmation.confirmation_type).all()
+        
+        counts_dict = dict(counts)
+        confirmations_count = counts_dict.get('confirmed', 0)
+        disputes_count = counts_dict.get('disputed', 0)
         
         required_confirmations = max(1, int(total_followers * ClosureService.CONFIRMATION_THRESHOLD))
         
diff --git a/backend/routers/grievances.py b/backend/routers/grievances.py
index 9aa24312..f13e3590 100644
--- a/backend/routers/grievances.py
+++ b/backend/routers/grievances.py
@@ -435,14 +435,15 @@ def get_closure_status(
         ).scalar()
         
         # Get all confirmation counts in a single query instead of multiple round-trips
-        from sqlalchemy import case
-        stats = db.query(
-            func.sum(case((ClosureConfirmation.confirmation_type == 'confirmed', 1), else_=0)).label('confirmed'),
-            func.sum(case((ClosureConfirmation.confirmation_type == 'disputed', 1), else_=0)).label('disputed')
-        ).filter(ClosureConfirmation.grievance_id == grievance_id).first()
+        # Optimized: Use group_by instead of sum(case) for better aggregation performance
+        counts = db.query(
+            ClosureConfirmation.confirmation_type,
+            func.count(ClosureConfirmation.id)
+        ).filter(ClosureConfirmation.grievance_id == grievance_id).group_by(ClosureConfirmation.confirmation_type).all()
         
-        confirmations_count = stats.confirmed or 0
-        disputes_count = stats.disputed or 0
+        counts_dict = dict(counts)
+        confirmations_count = counts_dict.get('confirmed', 0)
+        disputes_count = counts_dict.get('disputed', 0)
         
         required_confirmations = max(1, int(total_followers * ClosureService.CONFIRMATION_THRESHOLD))