Replaced isx cm2350 actuator, low power/engine

[Nerv]

Just replaced my 2013 cummins isx cm2350 turbo actuator, installed and calibrated, engine brake was completely underpowered, and engine power was reduced. I did the install/calibrate on insite again and it passed after a few attempts, it made the engine brake stronger and some power came back but still not as strong as it was before. Does it need to be recalibrated again? What could be going on?