Andy, I have an Intel Celeron N4020 1.1GHZ Processor and an Intel UHD Graphics 600 chip. My laptop has 4gb of ram. Setting the detail to low and putting the resolution I was able to get 25 to 26fps throughout the game. I managed to destroy maybe 5 enemies and then I am lost on what to do next. There are however lots of areas to climb if you figure out the sweet spots on some mountain areas on how to scale to the top but it takes practice.

1. when game loaded it automatically used the screen resolution of my computer which was 1440x900 and HIGHEST settings.
2. i changed those settings looking at the way the trees where moving in the settings window.
i lowered it to LOWEST and changed to 1024x768 and windowed, thinking that would speed up the game considerably.. it didnt..
I hate to think how slow it would be on the highest.. move an inch.. go make a cup of tea..
the game play at that resolution on my system.. would have been extremely slow..
example of other games i can play swat4, rainbow six las vegas with 0 slow down.. movement is fine in those..
fluid game play.. in comparison.. i found this SLOW.. just moving the gun left to right.. not walking.. how i didnt die in the first 5 secs.. when 2 attackers.. started shooting at me.. i pressed the mouse button and waited for my gun to fire.. yep that slow.. should have counted.. would have got to 3.. and remember this was on the above settings.. LOWEST, not highest..
Yes my system is not the newest.. but for something like this.. is should be more than enough.. after all the other games..
this game is for HIGH SPEC graphics not low spec..