Mine took a while to "settle" and it seems to be doing well, Ive moved it to 3 different locations and none has seemed better than another. I've had it in medium to high light to medium to high flow, I have vortechs on reefcrest so its to getting constant flow wherever its been placed.
I have LEDs over all my SPS
Mine took a few months to acclimate or "settle in" as I call it, actually all my new acros are that way- maybe yours is adjusting