No, it isn't slow or closed source. https://devblogs.microsoft.com/dotnet/performance-improvements-in-net-core-3-0/ https://devblogs.microsoft.com/dotnet/perfo

No, it isn't slow or closed source. https://devblogs.microsoft.com/dotnet/performance-improvements-in-net-core-3-0/ https://devblogs.microsoft.com/dotnet/performance-improvemen...