Problem with Fps on the location of the Taiga (Metro Exodus)

Iron 7400 I5,GTX 1060 6 GB of RAM, 16 GB of RAM. Windows 10 build 1809.
The ndvidia driver 418.91
Game version 1.03
1920x1080
I mostly play on medium to high graphics settings. Psyx, tessellation disabled. In the forest the Fps is not stable, on average, 40-58,60 do not want to endure.But in addition to this can be added to the friezes. Of course my iron is not at the level of the recommended requirements, but still. I wouldn't create this topic, if not one nuance. On Yotube there are lots of rollers, comparing the performance with my iron. So the authors of the rollers with 3 gigs 1060 In the forest imeout Fps 60+.When everything is stable.
There is a sense that problems in software, not hardware.