.Net Core is a lightweight and cross-platform version of the DotNet framework and the awesome thing is Developers required the same expertise to work with Asp.Net Core as .Net Framework.
.NET 4.7.2 is for streaming data into memory between 2% (Unsafe Parse
x86), 7% (Unsafe Parse x64) and 40% (Span Parse x64) slower than .NET
Core. Especially the 40% speed drop for Span based Apis due to the lack
of JIT support by the .NET Runtime is unfortunate.