May beits just me but i just notice every time u load a loop the game becom more harder to finish is savior im only in 3rd loop and its much harder than the first time i play it

Yes, it does.
If you find it too hard, you can start a new game from scratch - you will also lose gained levels, but all route completion flags will stay. Although I never needed it.
Alternatively, just train to fight better. Combos, parries, using other characters, etc.

I think im good with the dificulty cos in savior(hard mode) i still think they dont damage much especialt the 4boss on nanasi's path it only takes me 1try to kill all of them in savior loop4