Yeah, don't stress it to much, they're being slightly stunted, as they're over fertilized IMO, it's just the soil, most of these soils these days are all "Feeds plants for months" So there's a lot of time release ferts in there, that can cause it to be over done, and cause a bit of Nute burn, which imo is what your experiencing. If you had better drainage, i'd suggest you flush it with 3x more water then dirt at a proper pH. But give it a lil longer, if it gets MUCH worse, flush, if it stays the same, leave it, she'll grow out of it as she gets a little bigger and can handle the excess nutes. Just NO nutes for a bit, ya know?
They'll be ok man. When you have those beauties flowering, you'd never know they were stunted as sproutlings.