diff --git a/end2endTest/test_opcua.py b/end2endTest/test_opcua.py
index 997b343e..8c532a74 100644
--- a/end2endTest/test_opcua.py
+++ b/end2endTest/test_opcua.py
@@ -640,7 +640,7 @@ def test_timestamps(self, test_inst_TZ):
 
 
 class TestPerformanceTests:
-    @pytest.mark.xfail("CI" in environ, reason="GitLab runner performance issues")
+    @pytest.mark.xfail("CI" in environ, reason="CI runner performance varies")
     def test_write_performance(self, test_inst):
         """
         Write 5000 variable values and measure
@@ -703,6 +703,7 @@ def test_write_performance(self, test_inst):
             assert avgt < 5
             assert totr < 3000
 
+    @pytest.mark.xfail("CI" in environ, reason="CI runner performance varies")
     def test_read_performance(self, test_inst):
         """
         Read 5000 variable values and measure time and