Hello everyone,
I’m working on a performance-critical backend project in Rust — the API needs to handle extremely high throughput and very low latency. Because the project is sensitive, performance is my absolute top priority.

Right now, I’m stuck choosing between Actix-web and building my stack manually with Hyper + Tokio. I already understand both approaches, but I’m trying to figure out which one realistically delivers the highest performance possible in real production scenarios.

My questions to the community:

1. For maximum performance, which approach tends to win today:

Actix-web (with its actor system & optimizations)

or a fully custom Hyper + Tokio setup?

2. Are there any lesser-known frameworks, libraries, or runtime tools in Rust that outperform both for API servers? I don't mind complexity — I only care about stable, extreme performance.

3. For those who have built high-load APIs, what stack did you end up using, and what were the results?

Any benchmarks, experience, or deep technical explanations are highly appreciated.
Thanks a lot!

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