First, you don't need to run nickel at high wattage. With nickel, you don't want to get to your desired temp right away, because as soon as you do the chip will begin to dial back the power to keep you at said temp. Ideally you want to climb to your set temp during your draw, possibly hitting it right towards the end. The DNA board has "pre-heat", so it is going to throw more watts (if you are under 40) at the coil initially then back it down to your set wattage. If doing that brings you right to your set temp then it will continue to back down and you won't be getting the best vape possible.
Pay attention to what the wattage is doing during your vape and adjust accordingly. It is a balancing act, but once you find the sweet spot it is a really nice vape, but it will never be the cloud machine kanthal
coils can accomplish.