forward request to virtual server base on header on the url

example:

when HTTP_REQUEST {
  if {[HTTP::path] starts_with "/reports" } {
      pool report_pool
  } elseif { [HTTP::path] starts_with "/deposits" } {
      pool deposit_pool
  } and so on.
}

But i think it might be better to instead replicate your servers so that you have a lot more of them, and then use pool member connection limits to avoid over-loading each particular server. But it's the call of your developers and architects.