Shaved not as good as the initial. Mediocre value

These are my first replacement shaving heads for my Remington 7800, its initial thought after all 1.5 years.
The price of almost 23 EUR I find somewhat inflated, since you now get the razor partially for just over 50 EUR. There is no better with other manufacturers, I take the little grudgingly accepted.

But what (not just me) stands out: the shaving performance is not as good as in the initial, another reviewer has already described.
That to me is clearly a star deduction, because now I am not so enthusiastic about the razor, which I actually rated 5 stars.
But what can you do, like a new unit is also slightly ecologically. Something bad.