Which pornstars have you seen?
I have fucked two that have done main stream porn (Karlie Simon, Sasha Steele), plus a fair few more that have done Fake taxi sort of shit. These girl were as good as porn stars since they were porn stars. Proof by definition. But it was 1000 times better since the male actor when I fucked them in real life was much better looking and it was my dick. Would go back to these. (Reviews posted, not like some)
But not think any of them were better experience than Hayley or Woofie.
So, sorry the question makes no sense (or is 'loaded'). I don't find escorts disappointing. Is the question how come the experience you get from escorts is not as good as the experience YOU IMAGINE you would get from porn stars?
Two ideas for you OP
-Try to be more Zen and live in the moment and enjoyed today.
-Book the most expensive touring porn star you can, and learn that in RL she is not as hot as on camera, and that the fuck is the same as other top talent.