Worse Metahuman/lighting quality after 5.4 upgrade

I recently upgraded my project file from 5.3 to 5.4.
However since upgrading the lighting or the Metahuman got some sort of quality loss.
The light seems to be less “smooth”.

Screenshot 2024-08-04 214221
Screenshot 2024-08-04 214257

As you can see especially on the nose way darker shadows apear in 5.4 which I dont like.
What is causing this, how can I fix this?