Check your nVidia control panel settings to make sure it's using the dedicated GPU. Laptops often have both the dedicated GPU and an integrated GPU, and rely on software (such as the nVidia control panel) to select which one to use.
Your specs are roughly on par with mine, and I can easily maintain 60fps with basically everything cranked to max plus Depth of Field and some ReShade effects, so it's probably just picking the wrong GPU.
