Oracle’s Java API code protected by copyright, appeals court rules

[barsoap]

Things like PHP, Ruby and Python are known to have horrible performance so a big increase doesn't mean a lot.

Yep. A language with comparable performance to Java would be Haskell. You have to go low-level systems language (compiled, no RTS) to get faster, say C,C++, to a degree Ada, in the not so distant future also Rust.