Mine is calm like Sauzo's, but he will be 4 feet long in no time. I'm considering a 10 day schedule. He is NOT hungry all of the time so I'm going to spread things out a bit.
I plan on providing a 6 foot by 30 inch by 24 to 30 inch cage for his final home. I'm fully expecting a 10 foot snake which is nothing looking at my 7 foot carpet as long as the girth stays along the lines of my boa.
You are right though, I have 18% mainland in my guy and have also heard more than a few people say tigers tend to be VERY calm.
That probably helps. Sauzo and I have young animals too so I'm sure they are still settling in.
Your girl is beautiful and probably just needs some room to romp. Maybe add some perches and other items in the cage to stimulate her a bit.
Or drop the temps a tad and see if that helps.