Why so rude?

Again, the receiver does not determine the framerate than only its needed transmission protocol and to my knowledge with KO the transmission protocol is set manually.

As I did explain most 3rd party Futaba receivers only support the slower S-FHSS protocol, does that make them a bad quality? No, they are just made for that and use the same framerate as any Futaba S-FHSS receiver.

Regarding the pins: Board to board Pin header plating&materials | Products | GradConn
They are still brass pins nickel plated giving the idea they are steel pins. Steel is hard to solder, thats why I doubt your statement unless you did put an XRF gun on it.