Would storing an intermediate template improve things?
I mean, keep a template but where the inner templates are substed,
depending on the original parameters.
Robert Rohde wrote:
> A long while ago I remember looking at the parser and realizing that
> the recursive template expansion and argument handling led the parser
> to run all branches of #if and #switch statements before deciding
> which one to include.
>
> In other words, given {{#if: something | statements_A | statements_B
> }}, the parser was fully expanding both statements_A and statements_B
> before checking #if to decide which one to keep. Obviously that is
> inefficient and in the case of very complicated conditional templates
> potentially very expensive.
The new preprocessor don't follow unused branches (or so were we told ;).
http://en.wikipedia.org/wiki/Template:Citation/core screams for having loops
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