Ok- 2 hours is not long at all, so some quick questions.
You say you have the CSV for the batteries-you can check this is correct by going into Escribe, connecting your mod and checking it actually is on your device. This only makes your battery meter more accurate though, and I am sure does not affect your vape time.
What are your watt hours set too? I use 25R's with my dual 18650 hotcig, so will be a little lower than your setting.
This leads me to ask, what power settings are you using your mod at? If you are using it at 133W full power, it won't last very long, especially if you are hitting it pretty frequently.
The DNA200's max input voltage is 23A (It may now be 24A due to a firmware upgrade, I am not certain on this though-but I know the fuse blows at 25A input current). Its output is 50A with a 55A max burst current.
EDIT:
@Wingsfan0310 will be able to help you with this specific device and is very knowledgeable in regards to the DNA200, as I own some DNA200's but not the VT133, although I do own a device converted to use dual 18650's.