C++ has a faster runtime than C#, specifically due to the way it handles memory and compiles code. C# uses the common language runtime (CLR) provided by the .NET framework to convert C# into native code. C++ compiles directly into native code and doesn’t require a universal runtime ...
For example, maybe it’s more important to reduce the time spent with tools than it is to have custom branding and output. Or perhaps a modern web output is more important than the ability to build PDFs. Or perhaps you must have authentication for your docs, but you also don’t have ...