[FEATURE]: Do not wrap middleware with shimmer when middleware: false in express plugin

[billoneil]

Package Name

No response

Package Version(s)

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Describe the feature you'd like

tracer.use("express", {
    middleware: false,
});

It appears that even when middleware tracing is disabled all of the middleware is still wrapped in shimmer.js functions. When we have very high volumes of requests GC increases significantly and the DD profiler shows a lot of time spent in shimmer.js functions including copyProperties and wrapMethod. Is it possible to not even wrap the middleware with shimmer.js when middleware tracing is disabled instead of just skipping the tracing steps?

Is your feature request related to a problem?

High CPU/GC

Describe alternatives you've considered

No response

Additional context

No response