I think the lack of LR
may be contributing to the longer cycle. Smaller area for the benifical bacteria to develop therefore the long it will take to cycle. One suggestion about the lighting is lower the running time or leave them off. With them on your diatom bloom is going to be a longer one. Having your lighting on during this phase serves no purpose except to look at an mt tank.HTH
65 gal reef
2 PC's 192W each , 20 gal sump/fuge
4 false clowns, 2 firefish, cardinal, midas blennie, toadstool, zoos, shrooms, trumpet coral, torch, pagoda, frogspawn, poylps, red open brain, devils hand, hermits, snails, 3 cleaner shrimp, coral banded and a emerald crab.