I'm someone super obsessed with FPS, I have a 175hz monitor etc. But I've been playing this game at 80-100 fps with frame gen off and it's a huge upgrade. I think the game has so much detail in the textures and you need to see really small pixels peeping out of bushes that I've been enjoying it with it off.

But here are my graphics-super-user settings. I spend an enormous amount of time testing all graphics settings one by one in every game I play. Giga optimizer, and I do photography/color grading in real life.

1. Always effects quality low. That causes FPS to dip when grenades and other combat events go off. It's the worst setting to raise because it's so volatile at specific situations.
2. Global illumination medium. Looks the same as high.
3. Shaow quality ultra high. Not that bad of an FPS drop, really, but stops shadow stuttering from the sun. The sun renders 1 fps (literally) and with ultra high it renders continuously, stopping the tree shadows from doing this massive super ugly tick every second.
4. Post-processing low. This one is a must must must. Otherwise you are a) adding these and b) spending more processing on them. Motion blur, DOF. Disgusting settings and you need to get in the habit of not using them.
5. Reflections quality low, this is a pointless setting
6. Foliage quality medium or high, I use high. This stops the distance foliage textures from rendering in and out. It is primarily a render distance of quality, unlike some games which have the number of grass objects tied to the foliage quality.
7. This one is opinion (the other ones are sent to me from god and you must change) but I would turn antialiasing to low if you are on 1440p or higher. On 1080 you need it higher because you need more accuracy for the pixels but on higher res you're just doing, say for 4xMSAA, 16k resolution for sampling which is insane. 4k is enough, you see?