Set AsyncLazy.SuppressRecursiveFactoryDetection true

This avoids the overhead associated with the instance's re-entrancy prevention.

src/Microsoft.VisualStudio.ProjectSystem.Managed.VS/ProjectSystem/VS/LanguageServices/LanguageServiceHost.cs

@@ -91,7 +91,10 @@ public LanguageServiceHost(
                 return !await vsShell.IsCommandLineModeAsync()
                     || await vsShell.IsPopulateSolutionCacheModeAsync();
             },
-            threadingService.JoinableTaskFactory);
+            threadingService.JoinableTaskFactory)
+        {
+            SuppressRecursiveFactoryDetection = true
+        };
     }
 
     public Task LoadAsync()