Aww man, I hate to bring bad news...
I Just took a quick comparison between your Pulstar build and the Neo4All version of this game. And I have to say, overall it still runs better (faster, smoother) on Neo4All
Also, sometimes when you crash your ship and the gameplay starts again, it takes about 4-5 seconds for your ship to reappear. The bullets you're shooting are visible, but you ship is late. Then, like I told you before, the dimensions of the displayed image is slightly off. Take a look at the game running on Neo4All and notice, that there are small black bars on the top and bottom of the screen - that's how it's supposed to be with NeoGeo CD games.
Again, I feel sorry, to write such a discouraging comment. I really like you and the passion you're putting in this! But, yeah... for now I think Dreamneo might still not be on par with Neo4All.