I’ve decided to make a series of at least 8 free weekly-based webinars about in-depth implementation details of the .NET GC and… 

The Azure team details its performance improvements from migrating from .NET Framework to .NET Core 3.1 

These samples show how to compile C# to native code using the .NET Native AOT technology (NativeAOT, also known as CoreRT previously). 

Front-End Performance Checklist 2021 

The conclusion of the analysis:
C# Wasm AOT still has a long way to become a general and performant client side web programming platform. Note: The usage of the Uno.Wasm.Bootstrap toolchain may have affected the performance of some of the benchmarks. Thus, this analysis should not be regarded as a benchmark of the finalized product. However, note that the Uno platform is using ".NET 6 WebAssembly Mixed mode AOT/Interpreter" (source). 

You can check the raw benchmark data here

Bebop: An Efficient, Schema-based Binary Serialization Format