It is quite strange not being able to change any settings whatsoever, including framerate.
Also there seems to be no option to choose my native resolution (2560x1440).
Tried looking for some .ini file or document where you can change values manually but no luck. If anyone knows where these files are please let me know.
As mentioned in another thread, you can for example try the Unreal Engine 4 Unlocker to play on your preferred resolution. They are also already working on new settings, but as a small team, I guess that will take some time.