We use Microsoft Orleans a .NET C# distributed virtual actor framework at work. Maybe that’s something you want to checkout if it’s distributed model is something you can work with. C# performance is at least same as Java, maybe faster, plus C# has good async implementation built in using async and await keywords. You can also use F# functional language instead of C# if you use it through Orleankka.
I’ve read or maybe watched a video that Microsoft has used it to distribute IO and CPU bound work.
