title: Python cgi performance
body: <p>I own a legacy python application written as CGI. Until now this works OK, but the number of concurrent users will increment largely in the very near future.
  Here on SO I read: "CGI is great for low-traffic websites, but it has some performance problems for anything else". I know it would have been better to start in another way, but CGI is what is is now. </p>
  
  <p>Could someone point me a direction on to how to keep the CGI performing, without having to rewrite all code? </p>