More fastest query Course list

apps/course/views.py

@@ -177,7 +177,11 @@ class CoursesView(ListView):
             return super().get(request, args, kwargs)
 
     def get_queryset(self):
-        queryset = super().get_queryset()
+        queryset = super().get_queryset().select_related(
+            'author', 'category'
+        ).prefetch_related(
+            'likes', 'materials', 'content',
+        )
         filtered = CourseFilter(self.request.GET, queryset=queryset)
         return filtered.qs