Poor Solo. Everyone up until I'd say RotJ basically thought his ship was piece of ****.
It's hard to tell.. Lando said it was a fast ship in ESB when he had it but I have no doubt that Han did something to make it even faster and better, hence the mentioning " I made some special modifications " in ANH and let's not forget that the Falcon was literally being fixed in ESB but it still kicked butt and the fact that 30 years later in TFA Rey still got it to smoke the tie fighters is amazing.
I kind of wish the falcon was around in the PT just to have seen how they would've used it