diff --git a/common/lib/xmodule/xmodule/capa_module.py b/common/lib/xmodule/xmodule/capa_module.py
index 172128d907..5e7c6bceef 100644
--- a/common/lib/xmodule/xmodule/capa_module.py
+++ b/common/lib/xmodule/xmodule/capa_module.py
@@ -460,6 +460,11 @@ class ProblemBlock(
                     'seed': user_state.state.get('seed'),
                 },
                 seed=user_state.state.get('seed'),
+                # The main point of minimal_init=True here is to avoid invoking
+                # codejail, which makes the reports take much longer to run,
+                # and can also cause failures for CPU intensive instructor code
+                # in problems.
+                minimal_init=True,
                 # extract_tree=False allows us to work without a fully initialized CapaModule
                 # We'll still be able to find particular data in the XML when we need it
                 extract_tree=False,
diff --git a/common/lib/xmodule/xmodule/tests/test_capa_module.py b/common/lib/xmodule/xmodule/tests/test_capa_module.py
index a3351277b3..a176989c83 100644
--- a/common/lib/xmodule/xmodule/tests/test_capa_module.py
+++ b/common/lib/xmodule/xmodule/tests/test_capa_module.py
@@ -3179,7 +3179,14 @@ class ProblemBlockReportGenerationTest(unittest.TestCase):
         scope_ids = Mock(block_type='problem')
         descriptor = ProblemBlock(get_test_system(), scope_ids=scope_ids)
         descriptor.runtime = Mock()
-        descriptor.data = '<problem/>'
+        # Put a script tag so that codejail is normally invoked, to test that we
+        # suppress that invocation when generating this report.
+        descriptor.data = '''<problem>
+            <script type="loncapa/python">
+            x1 = random.randint(0, 100)
+            </script>
+        </problem>
+        '''
         return descriptor
 
     def test_generate_report_data_not_implemented(self):
@@ -3210,3 +3217,17 @@ class ProblemBlockReportGenerationTest(unittest.TestCase):
         iterator = iter([self._user_state(suffix='_dynamath')])
         report_data = list(descriptor.generate_report_data(iterator))
         assert 0 == len(report_data)
+
+    def test_safe_exec_not_called(self):
+        """
+        Make sure we're not calling instructor code when doing this report.
+
+        This relies on us passing minimal_init=True when making the
+        LoncapaProblem. Without that, this whole suite will break because the
+        data in the descriptor (self._get_descriptor()) will force capa to do
+        initializations that are mocked out at the moment.
+        """
+        with patch('capa.safe_exec.safe_exec') as mock_safe_exec:
+            descriptor = self._get_descriptor()
+            list(descriptor.generate_report_data(self._mock_user_state_generator(), 2))
+            assert not mock_safe_exec.called