Do you have also some quality issue when you post by jarvee?
Even if I choose a HQ picture (edited and optimized in Photoshop) once it’s post by jarvee, I can notice some noise, not a big disaster but enough to see the difference.
anything to check on jarvee to avoid this kind of compression (it’s what i guess)?
Are you posting through campaign? Do you have make images Unique checked? If you do, you can uncheck it. Do this only if those are your images (edited in photoshop)