No offense other responses, but I would not transplant yet. The plants do not look too big for their pots yet. They are also stressed and transplanting now is not going to help that. There does seem to be a nutrient/root issue with the leaf tip necrosis getting more severe lower on the plant. I would look into what could be damaging the roots, or affecting their transpiration up through the leaves. I would be curious to know your environmental conditions (eg. VPD) and watering practices. Your ph seems fine, but I would also check that there are not too many nutrients being given at this young stage. Happy growing! 🌱👍