Improve proxy PAC file processing?

What team is responsible for the dll used to process the proxy auto-detection script/file?  AKA PAC files and wpad.dat?

%SystemRoot%\system32\jsproxy.dll

I am wondering you you guys could give that some love and improve the speed that it is able to process the FindProxyForURL() function and specifically improve it when a global/external variable is used in the PAC file.  Such as this:

debug = 0;
proxyerror = 0;

function FindProxyForURL(url, host){
...
}

It works OK but seems to take a "bit" longer when using an external variable.  I know that when writing a PAC file its all about speed but this should not cause the noticable performance hit that it currently does.

Thanks.