Hello, thank you for the reply again.
I did understand that more powerful machines get more difficult jobs because they have more hashing power to get through them. As a consequence, they are paid more.
I should probably clarify my situation with a picture.
This is an evolution of my rig performance each time I tweaked my settings to give me more hash rate. The reported one went from 159 to 197. But as you can see on the graphic below, I am getting around the same amount of shares when I was at 159 mh/s or 197 mh/s.
Since we are getting paid by shares, there is no incentive for me to dedicated 197 mh/s of my hashing power since I could get the same amount of valid shares at 159 mh/s, thus saving on my electricity cost, and reducing the thermals of my cards.
Or… do you mean by if I submit the same amount of shares but since the difficulty is higher, my higher difficulty shares are worth more? And at the end getting more ETH although I submit as much shares as before?
Ohh, I think I understand now^
So no matter how powerful is the machine, we would only get around ~250-300 shares per hour because then the difficulty increases?