RAD vs. performance

I've been studying the typing wars and RAD vs. performance debate for a
while, and the only language I've found so far that bridges the gap is
Lisp, at least Common Lisp. My impression is that a dynamically typed
interpreter is good for RAD, and a statically typed compiler generates good
performance. CL can be either interpreted or compiled, and is dynamically
typed but has static "advisory" typing for final optimization.

Is there any other language that does something like that? Switches
between interpreting and compiling, and between dynamic and static typing?
Is Lisp the only language with adjustabe typing and execution?

--
YAD
.

Relevant Pages

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