Figured it out, posting my solution here in case it helps anyone.
So, because the 1 ohm pods aren't supported on the orion or orion plus by default, anyone who wants to use them has to change one of their atomizers to accept the 1 ohm pods. When I did this, the acceptable range that I (totally arbitrarily) chose was 0.8 - 1.2 ohms. In my experience the cold ohms of the coil tend to err slightly on the high side, usually between 1.0 and 1.1. And when you take a hit, the coil heats up and the resistance increases. So when I was taking a hit, pretty much regardless of the power I had set, the coil was very quickly approaching that 1.2 ohm limit and the dna chip was automatically reducing the power to keep the coil resistance below 1.2 ohms. As soon as I increased the upper end of the range for the 1 ohm atomizer, I was able to get the power output I had been expecting. I ended up going with 1.5 ohms for the top end, and everything works perfectly now.
tl;dr If your system refuses to output as much power as you think it should, try upping the acceptable resistance for your atomizer.