in reply to mod_perl without separate config for static HTML?

Considering the enlightenemnt received so far I should modify my query thus:

With Perl CGI scripts configured to run under Apache::Registry is the increased memory footprint of mod_perl processes also incurred in static content generation? As I understand it you need to isolate the 2 to get round this issue via separate servers/ports/IPs. Is FastCGI/SpeedyCGI therefore a better solution if you aren't using Apache::Request and have more static content than dynamic?