diff --git a/InvenTree/company/serializers.py b/InvenTree/company/serializers.py
index 09f2b4dee8..baa618fb28 100644
--- a/InvenTree/company/serializers.py
+++ b/InvenTree/company/serializers.py
@@ -99,6 +99,10 @@ class SupplierPartSerializer(InvenTreeModelSerializer):
         if manufacturer_detail is not True:
             self.fields.pop('manufacturer_detail')
 
+    supplier = serializers.PrimaryKeyRelatedField(queryset=Company.objects.filter(is_supplier=True))
+
+    manufacturer = serializers.PrimaryKeyRelatedField(queryset=Company.objects.filter(is_manufacturer=True))
+
     class Meta:
         model = SupplierPart
         fields = [
diff --git a/InvenTree/part/api.py b/InvenTree/part/api.py
index 9db4ef5425..f866a08850 100644
--- a/InvenTree/part/api.py
+++ b/InvenTree/part/api.py
@@ -603,7 +603,20 @@ class BomList(generics.ListCreateAPIView):
     """
 
     serializer_class = part_serializers.BomItemSerializer
-    
+
+    def list(self, request, *args, **kwargs):
+
+        queryset = self.filter_queryset(self.get_queryset())
+
+        serializer = self.get_serializer(queryset, many=True)
+
+        data = serializer.data
+
+        if request.is_ajax():
+            return JsonResponse(data, safe=False)
+        else:
+            return Response(data)
+
     def get_serializer(self, *args, **kwargs):
 
         # Do we wish to include extra detail?
@@ -622,8 +635,10 @@ class BomList(generics.ListCreateAPIView):
         
         return self.serializer_class(*args, **kwargs)
 
-    def get_queryset(self):
+    def get_queryset(self, *args, **kwargs):
+
         queryset = BomItem.objects.all()
+
         queryset = self.get_serializer_class().setup_eager_loading(queryset)
 
         return queryset
diff --git a/InvenTree/part/serializers.py b/InvenTree/part/serializers.py
index d460748468..c1ecfb5cce 100644
--- a/InvenTree/part/serializers.py
+++ b/InvenTree/part/serializers.py
@@ -236,6 +236,9 @@ class PartSerializer(InvenTreeModelSerializer):
     thumbnail = serializers.CharField(source='get_thumbnail_url', read_only=True)
     starred = serializers.SerializerMethodField()
 
+    # PrimaryKeyRelated fields (Note: enforcing field type here results in much faster queries, somehow...)
+    category = serializers.PrimaryKeyRelatedField(queryset=PartCategory.objects.all())
+
     # TODO - Include annotation for the following fields:
     # allocated_stock = serializers.FloatField(source='allocation_count', read_only=True)
     # bom_items = serializers.IntegerField(source='bom_count', read_only=True)
@@ -302,8 +305,13 @@ class BomItemSerializer(InvenTreeModelSerializer):
     price_range = serializers.CharField(read_only=True)
 
     quantity = serializers.FloatField()
+
+    part = serializers.PrimaryKeyRelatedField(queryset=Part.objects.filter(assembly=True))
     
     part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
+
+    sub_part = serializers.PrimaryKeyRelatedField(queryset=Part.objects.filter(component=True))
+
     sub_part_detail = PartBriefSerializer(source='sub_part', many=False, read_only=True)
 
     validated = serializers.BooleanField(read_only=True, source='is_line_valid')
@@ -328,6 +336,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
         queryset = queryset.prefetch_related('part')
         queryset = queryset.prefetch_related('part__category')
         queryset = queryset.prefetch_related('part__stock_items')
+
         queryset = queryset.prefetch_related('sub_part')
         queryset = queryset.prefetch_related('sub_part__category')
         queryset = queryset.prefetch_related('sub_part__stock_items')
diff --git a/InvenTree/stock/api.py b/InvenTree/stock/api.py
index 7284f8d5cd..4368f654cf 100644
--- a/InvenTree/stock/api.py
+++ b/InvenTree/stock/api.py
@@ -338,11 +338,6 @@ class StockList(generics.ListCreateAPIView):
 
         queryset = self.filter_queryset(self.get_queryset())
 
-        page = self.paginate_queryset(queryset)
-        if page is not None:
-            serializer = self.get_serializer(page, many=True)
-            return self.get_paginated_response(serializer.data)
-
         serializer = self.get_serializer(queryset, many=True)
 
         data = serializer.data
@@ -363,6 +358,7 @@ class StockList(generics.ListCreateAPIView):
                 part_ids.add(part)
 
             sp = item['supplier_part']
+
             if sp:
                 supplier_part_ids.add(sp)
 
@@ -434,6 +430,7 @@ class StockList(generics.ListCreateAPIView):
     def get_queryset(self, *args, **kwargs):
 
         queryset = super().get_queryset(*args, **kwargs)
+
         queryset = StockItemSerializer.prefetch_queryset(queryset)
         queryset = StockItemSerializer.annotate_queryset(queryset)
 
diff --git a/InvenTree/stock/serializers.py b/InvenTree/stock/serializers.py
index 07fdd7952e..bed3f8f7c1 100644
--- a/InvenTree/stock/serializers.py
+++ b/InvenTree/stock/serializers.py
@@ -99,15 +99,34 @@ class StockItemSerializer(InvenTreeModelSerializer):
 
         return queryset
 
+    belongs_to = serializers.PrimaryKeyRelatedField(read_only=True)
+
+    build_order = serializers.PrimaryKeyRelatedField(read_only=True)
+
+    customer = serializers.PrimaryKeyRelatedField(read_only=True)
+
+    location = serializers.PrimaryKeyRelatedField(read_only=True)
+
+    in_stock = serializers.BooleanField(read_only=True)
+
+    sales_order = serializers.PrimaryKeyRelatedField(read_only=True)
+
     status_text = serializers.CharField(source='get_status_display', read_only=True)
     
-    part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
-    location_detail = LocationBriefSerializer(source='location', many=False, read_only=True)
+    supplier_part = serializers.PrimaryKeyRelatedField(read_only=True)
+    
     supplier_part_detail = SupplierPartSerializer(source='supplier_part', many=False, read_only=True)
 
+    part = serializers.PrimaryKeyRelatedField(read_only=True)
+
+    part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
+
+    location_detail = LocationBriefSerializer(source='location', many=False, read_only=True)
+
     tracking_items = serializers.IntegerField(source='tracking_info_count', read_only=True, required=False)
 
     quantity = serializers.FloatField()
+    
     allocated = serializers.FloatField(source='allocation_count', required=False)
 
     serial = serializers.IntegerField(required=False)
@@ -140,9 +159,9 @@ class StockItemSerializer(InvenTreeModelSerializer):
         fields = [
             'allocated',
             'batch',
-            'build_order',
             'belongs_to',
             'customer',
+            'build_order',
             'in_stock',
             'link',
             'location',
@@ -155,10 +174,10 @@ class StockItemSerializer(InvenTreeModelSerializer):
             'required_tests',
             'sales_order',
             'serial',
-            'supplier_part',
-            'supplier_part_detail',
             'status',
             'status_text',
+            'supplier_part',
+            'supplier_part_detail',
             'tracking_items',
             'uid',
         ]