The game runs okay-ish on my Surface Pro 4 with the Core M3 processor and 4gb of ram, on the lowest settings @ 1920x1080.
On the beginner island I had a framerate of about 30 to 45 fps.
On the mainland its about 12 to 25 fps.
The loading times are very short.

All this device needs is a tad beefier GPU.