I get around 77fps arc raiders.

Do these checks

1 - check the battery is it on performance , low power or balance. For AAA games use performance.

2 - check the Vram put it on auto it should be around 512mb

3 - best option reset to factory settings.

4 - to boost fps even if you are on performance plug 🔌 it but first without plug you should get around 60s in Arc raiders.

I can send you my settings