Hello. I don’t know how much ppl here know about anime and manga, but, I bet some will get my point.
As some ppl may know, when a manga is animated, not always the animation quality is good.
Worse ones (Dragon Ball Super and Nanatsu no Taizai):
Good ones (DBZ and Nanatsu no Taizai):
As you can see, there is a “little” difference of quality between them.
My model suggestion is to enhance the worse ones to the good ones. xD