Same Problem here:
Intel i7-4980
16GB RAM
Nvidia GTX 1070
Only SSD
On low settings it lags very heavy.
I know, it's a beta. But in the moment is unplayable.
Loading time to 100%, 1 min +
And why it's a current game not possible to change any key settings ?
I use strg and alt for other settings. But I can't change sthis.
Best Regards