Do they need more room?

So there are 11 plants in veg. I’m still waiting to harvest the last bunch. As the medium and pots were wrong. I’m 3 months into flowering and still taking too long. I’ve made adjustments. Really happy how the veg plants are looking. But do they need more space? Can’t be good to have this many crammed in such a small area right? Super beautiful picture. But I need another cage.

It's hard to tell anything from you picture, but yes, each plant will be more productive individually if it does not have to comoete for light with its neighbors.

That looks like a jungle!! Plants look healthy but be on the watch for pests and mold! When they are so close together it makes it harder for air to circulate and light to penetrate. This in turn makes it easier for mold to grow, and for pests to thrive.