Could someone explain why "ASP.NET Core 1.1" Kestrel webserver decided to use LibUV DllImpor [1] instead of .NET Asynchronous Server Socket (System.Net.Socket

Could someone explain why "ASP.NET Core 1.1" Kestrel webserver decided to use LibUV DllImpor [1] instead of .NET Asynchronous Server Socket (System.Net.Sockets) [2]. Does that mean that the managed implementation of Async socket is broken and was too slow? [1] "https://github.com/aspnet/KestrelHttpServer/blob/dev/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Networking/Libuv.cs" https://github.com/aspnet/KestrelHttpServer/blob/dev/src/Mic... [2] https://msdn.microsoft.com/en-us/library/bew39x2a(v=vs.110).aspx https://msdn.microsoft.com/en-us/library/bew39x2a(v=vs.110)....