Troubleshooting FPS

I categorically welcome all farmers! It helped me personally (I still don’t understand how it could help), but maybe it will help you, which is why I’m writing)

My computer:
Ryzen 5 2600
GTX 1060 3GB (Overclocking core +130, memory +550, in games not higher than 65 gr, a card from gigabytes)
2x8 HyperX Fury 3000 mhz

Absolutely all settings are turned to ultra, except for - Multisamp, postprocessor, FFX 1.0 - they are off. FFX 2.0 stands for quality (1.5 sharpness). Vert. anti-aliasing on, I play on full hd.

The whole point is to change the FOV (field of view), by default I had 60, I set it to 70 and I have stable 50-60 fps without friezes, with standard 60 - lags. The same miracle works for me in The Hunter Call of The Wild, everything is on ultra, but the FOV is higher and it plays at 60 fps generally calmly, there is no limit to my surprise)