HyperNova said:
And just ONE other thing that bothered me…
WHAT HAPPENED TO HYPERSPEED ???
No mentioning of that in the movie. It’s all a bout LIGHTSPEED all of a sudden.

?
1977;
“She’ll make point five past lightspeed.”
“How long before you can make the jump to lightspeed?”
“Go strap yourself in, I’m going to make the jump to lightspeed.”

1980;
“…they’ll dump their garbage before they go to lightspeed.”
“Lord Vader, the fleet has moved out of lightspeed”
"the hyperdrive motivator has been damaged. It’s impossible to go to lightspeed! "