Is this over fertilization?

I don’t agree with the comment bellow. Iron deficiencies affect the new growth on a plant as it is an immobile nutrient. This is not the case. What you have is affecting the top growth but not new growth. Your plant is clearly suffering from heat and light stress. I mean most of the leaves are shaped like tacos 🌮 trying to shade themselves from the light and serrated leaf edges are pointing straight up giving them that saw tooth appearance due to the heat. She is burning up . You need to give it partial shade during mid day and try to put it somewhere it can get more of a breeze and not in a stagnant corner. I hope you research these symptoms for yourself and make the appropriate changes. I also hope you pick a grower that best answered your question even if you don have a diary cause that seems to happen quite a bit around here. It means a lot to this community. Cheers 🍻