How can you optimize large Groovy scripts by mixing static and dynamic compilation?

Rather than applying @CompileStatic to an entire large script or class wholesale, which can force rewriting genuinely dynamic sections just to make them compile, apply it selectively at the method level, keeping only the performance-critical or type-stable methods statically compiled while leaving genuinely dynamic methods, DSL-handling code, metaClass-based logic, without the annotation.

Use @CompileDynamic on specific methods within an otherwise @CompileStatic-annotated class as an explicit escape hatch - this lets you default a class to static compilation for most of its methods while carving out one or two methods that need to stay dynamic, without needing to remove @CompileStatic from the whole class.

Structure the script so dynamic, DSL-style configuration code, which benefits from Groovy's flexibility, is separated from data-processing or computational logic, which benefits from static compilation's performance, rather than interleaving both styles throughout the same method - this makes the mixed-compilation boundaries clean and easy to reason about instead of scattered.

Measure actual impact before committing to this restructuring effort broadly across a large script - the dispatch overhead @CompileStatic removes is most significant in tight loops and high-call-volume paths; applying it to code that runs rarely, like one-time startup configuration, won't meaningfully change overall performance and just adds restriction for no measurable gain.

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