what would help to cycle quicker?

I would suggest more lr. You could also use a shrimp from your local deli. I wouldn't add anything chemical to the tank. Don't put any live animals in the tank to cycle. It is cruel and inhumane. All you need is some patience. My 55 only took 18 days to cycle and I just used lr. I, of course, waited another month to add any animals.

I found live sand (Aragalive! brand is what I bought) really helped with my 65g - ammonia and nitrite were getting too high for my liking, then I added the LS and they barely registered after 24h; it definitely sped things up.

ADD --> I work for a LPS owned by Hagen (the makers of 'Cycle'). It's garbage. Trust me. I agree more cured LR would help out. If you add uncured you'll get more potential life, but the cycle will be longer.