How would the situation work if let just say jango has fast hands and force speed and Rey activates via vibro/holdout/dl44, jango would activate and resolve his force speed via fast hands, where does these two additional action fall? Before reys second action or after?
Jango with fast hands versus rey cheating
Not even gonna ask how you're getting Force Speed on Jango in the first place!
That's some severe Cargo Hold shenanigans!
The Jango actions go to the back of the queue, so Rey gets to finish all of her ambush-generated and Rey-generated actions (two more in this case, I think?) and then Jango gets to do his two actions. (Then it's probably Jango's turn for real, unless Rey generated more actions somehow)
If Rey also has a Force Speed, her Force Speed actions go to the back of the queue, so Jango gets his Force Speed actions first.
You might find the part on "the Queue" on page 17 helpful:
Actually, additional actions do not enter the queue, and are resolved in the order they were created.
Look at rules concerning extra actions on page 15.
That's right. My bad.
"Queue" is an overloaded word.
There is a queue-like line that actions enter (separate from the "ability queue"), so what I said earlier is correct, but the "queue" as this game defines it is not involved.