diff --git a/apps/assets/serializers/asset/common.py b/apps/assets/serializers/asset/common.py
index c4f2a5da7..01a8bc7b8 100644
--- a/apps/assets/serializers/asset/common.py
+++ b/apps/assets/serializers/asset/common.py
@@ -11,7 +11,6 @@ from accounts.serializers import AccountSerializerCreateValidateMixin
 from accounts.serializers import AuthValidateMixin
 from common.serializers import WritableNestedModelSerializer, SecretReadableMixin, CommonModelSerializer
 from common.serializers.fields import LabeledChoiceField
-from common.utils import lazyproperty
 from orgs.mixins.serializers import BulkOrgResourceModelSerializer
 from ...const import Category, AllTypes
 from ...models import Asset, Node, Platform, Label, Protocol
@@ -205,7 +204,7 @@ class AssetSerializer(BulkOrgResourceModelSerializer, WritableNestedModelSeriali
             nodes_to_set.append(node)
         instance.nodes.set(nodes_to_set)
 
-    @lazyproperty
+    @property
     def _initial_data_platform(self):
         if self.instance:
             return self.instance.platform
diff --git a/apps/perms/api/user_permission/assets.py b/apps/perms/api/user_permission/assets.py
index 98339fde3..0daa23791 100644
--- a/apps/perms/api/user_permission/assets.py
+++ b/apps/perms/api/user_permission/assets.py
@@ -29,13 +29,12 @@ class BaseUserPermedAssetsApi(SelfOrPKUserMixin, ListAPIView):
     ordering_fields = ("name", "address")
     filterset_class = AssetFilterSet
     serializer_class = serializers.AssetPermedSerializer
-    only_fields = serializers.AssetPermedSerializer.Meta.only_fields
 
     def get_queryset(self):
         if getattr(self, 'swagger_fake_view', False):
             return Asset.objects.none()
         assets = self.get_assets()
-        assets = assets.prefetch_related('platform').only(*self.only_fields)
+        assets = self.serializer_class.setup_eager_loading(assets)
         return assets
 
     @abc.abstractmethod
diff --git a/apps/perms/serializers/user_permission.py b/apps/perms/serializers/user_permission.py
index 27fde71d1..34143d936 100644
--- a/apps/perms/serializers/user_permission.py
+++ b/apps/perms/serializers/user_permission.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 #
 
+from django.db.models import F
 from django.utils.translation import ugettext_lazy as _
 from rest_framework import serializers
 
@@ -32,9 +33,18 @@ class AssetPermedSerializer(OrgResourceModelSerializerMixin):
             "id", "name", "address", 'domain', 'platform',
             "comment", "org_id", "is_active",
         ]
-        fields = only_fields + ['protocols', 'category', 'type', 'spec_info'] + ['org_name']
+        fields = only_fields + ['protocols', 'category', 'type'] + ['org_name']
         read_only_fields = fields
 
+    @classmethod
+    def setup_eager_loading(cls, queryset):
+        """ Perform necessary eager loading of data. """
+        queryset = queryset.prefetch_related('domain', 'nodes', 'labels') \
+            .prefetch_related('platform', 'protocols') \
+            .annotate(category=F("platform__category")) \
+            .annotate(type=F("platform__type"))
+        return queryset
+
 
 class NodePermedSerializer(serializers.ModelSerializer):
     class Meta: