I am also disapointed at the ever dropping performance, Engine has become too bloated with all non gaming related plugins and code.
As @FrankieV said I too feel Metahuman and ue5 features are mostly suited outside gaming.
I am also thinking of moving out because of these and other things, especially the Device lost error which happen on both directx and vulkan, affecting packed games on all OS. I am yet to find an engine which can work offline and does not have too many broken features. Cryengine had too many broken thing the last time I tired. Has it changed?