diff --git a/test/Cuemon.Core.Tests/Assets/UnmanagedDisposable.cs b/test/Cuemon.Core.Tests/Assets/UnmanagedDisposable.cs
index a0bd688f1..68e5c254b 100644
--- a/test/Cuemon.Core.Tests/Assets/UnmanagedDisposable.cs
+++ b/test/Cuemon.Core.Tests/Assets/UnmanagedDisposable.cs
@@ -48,7 +48,8 @@ public UnmanagedDisposable()
             }
             else if (Environment.OSVersion.Platform == PlatformID.Unix)
             {
-                if (NativeLibrary.TryLoad("libc.so.6", GetType().Assembly, DllImportSearchPath.SafeDirectories, out _libHandle))
+                var libraryName = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? "libSystem.B.dylib" : "libc.so.6";
+                if (NativeLibrary.TryLoad(libraryName, GetType().Assembly, DllImportSearchPath.SafeDirectories, out _libHandle))
                 {
                     _handle = _libHandle; // i don't know of any native methods on unix
                 }
@@ -119,4 +120,4 @@ protected override void OnDisposeUnmanagedResources()
 #endif
         }
     }
-}
\ No newline at end of file
+}
diff --git a/test/Cuemon.Diagnostics.Tests/TimeMeasureTest.cs b/test/Cuemon.Diagnostics.Tests/TimeMeasureTest.cs
index cd6bd5de2..c6ba16786 100644
--- a/test/Cuemon.Diagnostics.Tests/TimeMeasureTest.cs
+++ b/test/Cuemon.Diagnostics.Tests/TimeMeasureTest.cs
@@ -11,7 +11,7 @@ namespace Cuemon.Diagnostics
     public class TimeMeasureTest : Test
     {
         private static readonly TimeSpan ExpectedExecutionTime = TimeSpan.FromSeconds(1);
-        private static readonly TimeSpan Jitter = TimeSpan.FromMilliseconds(100);
+        private static readonly TimeSpan Jitter = TimeSpan.FromMilliseconds(250);
 
         public TimeMeasureTest(ITestOutputHelper output) : base(output)
         {
@@ -1288,4 +1288,4 @@ public void WithAction_ShouldHaveStoppedProfiler_WhenCompleted()
             Assert.False(profiler.Timer.IsRunning);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/test/Cuemon.Resilience.Tests/Assets/ActionTransientOperation.cs b/test/Cuemon.Resilience.Tests/Assets/ActionTransientOperation.cs
index 73806ba30..43f630557 100644
--- a/test/Cuemon.Resilience.Tests/Assets/ActionTransientOperation.cs
+++ b/test/Cuemon.Resilience.Tests/Assets/ActionTransientOperation.cs
@@ -26,7 +26,7 @@ public static void TriggerTransientFaultException(Guid id, ConcurrentDictionary<
 
         public static void TriggerLatencyException(Guid id, ConcurrentDictionary<Guid, int> retryTracker)
         {
-            Thread.Sleep(250);
+            Thread.Sleep(750);
             retryTracker[id] += 1;
             throw new HttpRequestException();
         }
@@ -38,4 +38,4 @@ public static void FailWithNonTransientFaultException(Guid id, int expectedRetry
             throw new InvalidOperationException();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/test/Cuemon.Resilience.Tests/Assets/AsyncActionTransientOperation.cs b/test/Cuemon.Resilience.Tests/Assets/AsyncActionTransientOperation.cs
index 79233835d..a3651e162 100644
--- a/test/Cuemon.Resilience.Tests/Assets/AsyncActionTransientOperation.cs
+++ b/test/Cuemon.Resilience.Tests/Assets/AsyncActionTransientOperation.cs
@@ -27,9 +27,9 @@ public static Task TriggerTransientFaultExceptionAsync(Guid id, ConcurrentDictio
             throw new HttpRequestException();
         }
 
-        public static Task TriggerLatencyExceptionAsync(Guid id, ConcurrentDictionary<Guid, int> retryTracker, CancellationToken ct)
+        public static async Task TriggerLatencyExceptionAsync(Guid id, ConcurrentDictionary<Guid, int> retryTracker, CancellationToken ct)
         {
-            Thread.Sleep(250);
+            await Task.Delay(750, ct);
             retryTracker[id] += 1;
             throw new HttpRequestException();
         }
@@ -41,4 +41,4 @@ public static Task FailWithNonTransientFaultExceptionAsync(Guid id, int expected
             throw new InvalidOperationException();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/test/Cuemon.Resilience.Tests/Assets/AsyncFuncTransientOperation.cs b/test/Cuemon.Resilience.Tests/Assets/AsyncFuncTransientOperation.cs
index 21cd89b3f..41e095e89 100644
--- a/test/Cuemon.Resilience.Tests/Assets/AsyncFuncTransientOperation.cs
+++ b/test/Cuemon.Resilience.Tests/Assets/AsyncFuncTransientOperation.cs
@@ -27,9 +27,9 @@ public static Task<string> TriggerTransientFaultExceptionAsync(Guid id, Concurre
             throw new HttpRequestException();
         }
 
-        public static Task<string> TriggerLatencyExceptionAsync(Guid id, ConcurrentDictionary<Guid, int> retryTracker, CancellationToken ct)
+        public static async Task<string> TriggerLatencyExceptionAsync(Guid id, ConcurrentDictionary<Guid, int> retryTracker, CancellationToken ct)
         {
-            Thread.Sleep(350);
+            await Task.Delay(750, ct);
             retryTracker[id] += 1;
             throw new HttpRequestException();
         }
@@ -41,4 +41,4 @@ public static Task<string> FailWithNonTransientFaultExceptionAsync(Guid id, int
             throw new InvalidOperationException();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/test/Cuemon.Resilience.Tests/Assets/FuncTransientOperation.cs b/test/Cuemon.Resilience.Tests/Assets/FuncTransientOperation.cs
index d0279f572..b17e16fef 100644
--- a/test/Cuemon.Resilience.Tests/Assets/FuncTransientOperation.cs
+++ b/test/Cuemon.Resilience.Tests/Assets/FuncTransientOperation.cs
@@ -28,7 +28,7 @@ public static string TriggerTransientFaultException(Guid id, ConcurrentDictionar
 
         public static string TriggerLatencyException(Guid id, ConcurrentDictionary<Guid, int> retryTracker)
         {
-            Thread.Sleep(250);
+            Thread.Sleep(750);
             retryTracker[id] += 1;
             throw new HttpRequestException();
         }
@@ -40,4 +40,4 @@ public static string FailWithNonTransientFaultException(Guid id, int expectedRet
             throw new InvalidOperationException();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/test/Cuemon.Resilience.Tests/TransientOperationTest.cs b/test/Cuemon.Resilience.Tests/TransientOperationTest.cs
index 644dbe548..2da35fb97 100644
--- a/test/Cuemon.Resilience.Tests/TransientOperationTest.cs
+++ b/test/Cuemon.Resilience.Tests/TransientOperationTest.cs
@@ -21,7 +21,7 @@ public class TransientOperationTest : Test
         private const int NormalRunIncrement = 1;
         private const int DescriptiveExceptionCauseIncrement = 1;
         private static readonly TimeSpan ExpectedRecoveryWaitTime = TimeSpan.FromSeconds(1);
-        private static readonly TimeSpan ExpectedMaximumAllowedLatency = TimeSpan.FromMilliseconds(250);
+        private static readonly TimeSpan ExpectedMaximumAllowedLatency = TimeSpan.FromMilliseconds(500);
 
         public TransientOperationTest(ITestOutputHelper output) : base(output)
         {
@@ -382,4 +382,4 @@ public async Task WithFuncAsync_ShouldTriggerInvalidOperationException()
             Assert.Equal(ExpectedRetryAttempts, _retryTracker[id]);
         }
     }
-}
\ No newline at end of file
+}