Slow loading site: CI or bad coding?

[eluser]gops[/eluser]
The easiest way is to make if statements in main view file.
Although it adds more lines , it is really fast option.

something like

if($controller == "main")
{
/*add main javascript files*/
}
else if($controller == "bla")
{
/* add another javascripts*/
}

And make sure that caching is enable.

There are php packers are also available, which actually combined all the javascript in to one,on the fly. google for them.