When are you going? Are you taking DME from the airport to POP. The average travel time via DME from MCO to the resort is 70 = 90 minutes.
You need to allow about 90 minutes travel time from one resort to another, after you check in.
So if you land at MCO at 4:30, say 6 ish to get to POP to check in. 15 -30 minutes to check in and stow your luggage. And then 60 - 90 minutes to the Poly for dinner. This has you at the Poly at any where from 7:15 - 8, if everything goes exactly right. Then if you can get a reservation for 'OHana, which has a MK view, you may or may not have a window table to see the fireworks that are happening exactly as you arrive. Most likely, you would not be seated right away, and you would be waiting out of view while Wishes is on. Or you could be lucky and get seated right away, but without a window view.
I am not trying to be negative. I am trying to be realistic.
I think you are expecting too much on arrival day. I would plan on something more low key on arrival night, early to bed and up bright and early to start your vacation in the morning.