I like C# too, but both languages seem to perform pretty similarly in my experience. The biggest difference seems to come from third party libraries being more

I like C# too, but both languages seem to perform pretty similarly in my experience. The biggest difference seems to come from third party libraries being more optimized in one framework than the other. Once Project Loom receives some more love (I believe that's scheduled for the next LTS, Java 25) I'll be very interested to see how Java's green threads will compare to C#'s async/await. I think Java's model may help programmers write more optimal code easier, but only if they can pull off their scheduling improvements. C# does have massive advantages when calling native code, though. Java FFI is always just kind of a pain and C# FFI is pretty much trivial.