A question about LightBurn Behavior

A question about LightBurn behavior. I made a “coin” that I am going to use as a sort of business card. I got the idea from The Louisiana Hobby Guy video. It cuts out the empty space in the coin and the text is what remains. I’m using the settings below.

I created a virtual array of 32 coins. When I first started burning, the laser swept across the material burning (what seemed like) a row of dots at a time. As it got above a row of coins, it seemed to be moving over the space between coin rows as if it was burning something.

I remembered reading about Flood Fill, so I stopped it. Checked off flood fill in the advanced tab, then started over. This time it seemed like it was doing one coin at a time. It has been running for a long time. Would it have been better if I did not flood fill? It s working fine, I am just curious about the best way to do this. Thanks!