They look like they are strectching a little. I noticed with my plants it usually takes about a month before the roots really take hold and then they will start flourishing.
This is my first outdoor grow so I'm experimenting a lot. I've got plants in the ground and in plastic, clay,mand smart pots. From seeds sprouted in soil and germinated and clones. One thing I've noticed I'd the plants in pots are easier to tell when and how much to water and they seem to be growing better- especially the smartpots. All the clones are slower growing and took longer for the roots to take. You will definitely notice when the roots take hold good- plants just start exploding with new growth. Mine are growing about an inch or more per day, I'm loving it. Just hang in there they'll start taking off soon, and yes you might want to top them or tie them down."When my plants are happy I'm happy".