Bougainvillea Repot

I repotted my large bougainvillea, I noticed very little root growth after two years. Tree is healthy, although not growing as fast as I would think. Also, the tree is slightly loose in the pot still after repot and tie down. Can I start over again with a new repot or add additional exterior wire to tie it down firmer. Would another repot the day after cause too much stress?

If the soil or the rootwork wasn’t up to par, I’d repot, otherwise I’d re-secure the tree by inserting a wire up the drainage holes and tie down the rootball as best as possible.