> That’s because Gforth is a threaded-code VM that saves dictionary images rather than compiling to native code.

That's not correct. Gforth features a JIT compiler, although they don't call it that, they call it dynamic superinstructions. It will be enabled if you run gforth-fast. If I understand correctly, the native code sequences are always generated at runtime, and cannot be baked into an image file.

• Dynamic Superinstructions https://www.complang.tuwien.ac.at/forth/gforth/Docs-html/Dyn...

• [PDF] Code-Copying Compilation in Production An Experience Report (2025) http://www.euroforth.org/ef25/papers/ertl.pdf