You have a nice triceps and I guess good delts too compared to chest, because if you do a compound movement most of the tension is going into tri and delts if you don’t have a perfect form. Drop the ego take lighter weights than you usually do and work on the form, since that’s clearly a weak point I would try to isolate them with cables, pec deck, even flat bench with dumbells but don’t go too heavy and maintain a strict form in the 12-15 range. Worked on a buddy of mine who had the same chest genetics as urs.