I specifically hid the qty field from the category pages as I was using a variable item and did not need to have quantities
It was the view carts page, however, I have since this morning worked out that I needed to use Bootstrap 3 instead of 5 for the cart page to display properly
It also speeded up the whole site as it was prolonged before.
I do not know if this is a Yootheme issue or a j2commerce issue
One other thing I noticed is that when you save an article it takes quite a few seconds to save, so not too sure if this is again to do with j2 Commerce.