Persona 5 [BLUS31604]

I want to ask, I'm using the latest build and even add a patch file to boost my FPS. Yea it is boosting my FPS from 30 to 60 FPS. But the game still kinda laggy. It still hit 0.-ish even though the FPS is higher in some part of the game than when not having the patch file. Cutscenes, animations have 20-30fps but still lag. I wonder what's wrong? Ah and the audio still stuttering as well.

My spec:
CPU: AMD FX-4300 3.8GHz (Overclocked to 4GHz)
GPU: AMD RX 460 2GB
RAM: 16GB