Soften 'performance penalty' language (dotnet#10462)

aspnetcore/fundamentals/servers/index.md

@@ -4,7 +4,7 @@ author: guardrex
 description: Discover the web servers Kestrel and HTTP.sys for ASP.NET Core. Learn how to choose a server and when to use a reverse proxy server.
 ms.author: tdykstra
 ms.custom: mvc
-ms.date: 01/11/2019
+ms.date: 01/17/2019
 uid: fundamentals/servers/index
 ---
 # Web server implementations in ASP.NET Core
@@ -34,7 +34,7 @@ The [ASP.NET Core Module](xref:host-and-deploy/aspnet-core-module) is a native I
 
 ### In-process hosting model
 
-Using in-process hosting, an ASP.NET Core app runs in the same process as its IIS worker process. This removes the out-of-process performance penalty of proxying requests over the loopback adapter, a network interface that returns outgoing network traffic back to the same machine. IIS handles process management with the [Windows Process Activation Service (WAS)](/iis/manage/provisioning-and-managing-iis/features-of-the-windows-process-activation-service-was).
+Using in-process hosting, an ASP.NET Core app runs in the same process as its IIS worker process. In-process hosting provides improved performance over out-of-process hosting because requests aren't proxied over the loopback adapter, a network interface that returns outgoing network traffic back to the same machine. IIS handles process management with the [Windows Process Activation Service (WAS)](/iis/manage/provisioning-and-managing-iis/features-of-the-windows-process-activation-service-was).
 
 The ASP.NET Core Module: