diff --git a/src/Compilers/Core/Portable/InternalUtilities/SemaphoreSlimExtensions.cs b/src/Compilers/Core/Portable/InternalUtilities/SemaphoreSlimExtensions.cs
index 00cd69a0e04e2817c5ebe74f779abb507760b1c3..fc789735c6f25ba64d93077f1565184768fd671b 100644
--- a/src/Compilers/Core/Portable/InternalUtilities/SemaphoreSlimExtensions.cs
+++ b/src/Compilers/Core/Portable/InternalUtilities/SemaphoreSlimExtensions.cs
@@ -14,7 +14,8 @@ public static SemaphoreDisposer DisposableWait(this SemaphoreSlim semaphore, Can
             return new SemaphoreDisposer(semaphore);
         }
 
-        public async static Task<SemaphoreDisposer> DisposableWaitAsync(this SemaphoreSlim semaphore, CancellationToken cancellationToken = default)
+        [PerformanceSensitive("https://github.com/dotnet/roslyn/issues/36114", OftenCompletesSynchronously = true)]
+        public async static ValueTask<SemaphoreDisposer> DisposableWaitAsync(this SemaphoreSlim semaphore, CancellationToken cancellationToken = default)
         {
             await semaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
             return new SemaphoreDisposer(semaphore);
diff --git a/src/Interactive/Host/Microsoft.CodeAnalysis.InteractiveHost.csproj b/src/Interactive/Host/Microsoft.CodeAnalysis.InteractiveHost.csproj
index 6169bc8e19acc680ac2ff31e20e11efc4b256859..4da239c119bd37a7e62b107c37febbaa0e015fa7 100644
--- a/src/Interactive/Host/Microsoft.CodeAnalysis.InteractiveHost.csproj
+++ b/src/Interactive/Host/Microsoft.CodeAnalysis.InteractiveHost.csproj
@@ -42,6 +42,7 @@
     <Compile Include="..\..\Workspaces\Core\Portable\Utilities\NonReentrantLock.cs" Link="Utilities\NonReentrantLock.cs" />
     <Compile Include="..\..\Workspaces\Core\Portable\Utilities\ValuesSources\ValueSource.cs" Link="Utilities\ValueSource.cs" />
     <Compile Include="..\..\Workspaces\Core\Portable\Utilities\ValuesSources\ConstantValueSource.cs" Link="Utilities\ConstantValueSource.cs" />
+    <Compile Include="..\..\Compilers\Core\Portable\InternalUtilities\PerformanceSensitiveAttribute.cs" Link="Utilities\PerformanceSensitiveAttribute.cs" />
     <Compile Include="..\..\Compilers\Core\Portable\InternalUtilities\SemaphoreSlimExtensions.cs" Link="Utilities\SemaphoreSlimExtensions.cs" />
     <Compile Include="..\..\Compilers\Core\Portable\InternalUtilities\ExceptionUtilities.cs" Link="Utilities\ExceptionUtilities.cs" />
     <Compile Include="..\..\Compilers\Core\Portable\InternalUtilities\FailFast.cs" Link="Utilities\FailFast.cs" />