Top 20 NuGet fast Packages

Object Data Structure is a fast byte based file format designed for video games.
This ITU-T/ISO standard XML encoding is compact, fast and interoperable. Integrated into the XML processing API of .NET, it is as straight forward to use as the text encoding.
Json library for .NET
BinaryRage - the ultra fast .NET key/value store. - BinaryRage is designed to be a lightweight ultra fast key/value store for .NET with no dependencies - It's production-ready - already in several large production-environments - Supports complex objects out of the box (and lists of objects) - 100% ...
FastData is a simple and fast .NET micro ORM that can be used as ultra-fast data access layer of high-performance .NET projects.
Update the WMAppManifest.xml file to indicate that a Windows Phone 8.0 app supports Fast App Resume.
fastYam
Fast and flexible serialization framework usable on undecorated classes
Framework to speedup tests for batching systems. Core assembly.
HaveBoxJSON is a among the fastest of JSON Libs for .NET. HaveBoxJSON is dedicated to only serialize and deserialize JSON, and it does it faster than most other JSON libs. HaveBoxJSON is not bloated with unnecessary features, and therefor it is only a fraction in size compared to leading competitor...
Lightweight AJAX Framework.
Exception free and extremly fast object mapper
The C++ Mathematical Expression Toolkit Library (ExprTk) is a simple to use, easy to integrate and extremely efficient run-time mathematical expression parsing and evaluation engine. The parsing engine supports numerous forms of functional and logic processing semantics and is easily extendible. ht...
The C++ Mathematical Expression Toolkit Library (ExprTk) Extra Examples https://www.partow.net/programming/exprtk/index.html
A minimalistic and fast JSON parser/deserializer. Mobile versions for Android and WP8.
A class library for managing multi-threaded sequential write access to one or more files. It is capable of flushing writes from multiple threads in batches by either hitting a specified size threshold or a specified inactivity time limit. It is also possible to write this batching information within...
Tiny Fast Json Parser Support Multiple Indexing, Json Object And Json Array.
Eco Tools is a set of classes and methods that helps to develop performance critical code on the top of .NET Framework.
Preved
test package