I am having horrific framerate issues during cutscenes and dungeons. Certain cutscenes are immensely lagging, meanwhile certain dungeon boss effects eat at my framerate for a few seconds. I am playing on a laptop, with custom settings (everything set to low), but during the Benchmark Tool I was running the Benchmark at Laptop (High) settings with no issues. I have disabled Nvidia GForce Experience completely, even turned it back on, just to turn it back off. I am playing in Full Screen now, was previously playing in Borderless Windowed but the issue still persists. Is there anything I can do at all to fix my performance? I cannot find anyone else having my issues. My specs are:

CPU: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
GPU: NVIDIA GeForce GTX 1660 Ti
Disc 0 (D: Samsung SSD 860 EVO 500 GBs (my game is on this)
System Model: G5 5590
Memory: 16384MB RAM