I found that my machine can only run this game under 30 fps, most peak is 60 when there’s only me on map.
My laptop has core i5 gen 4 with GT 820m and 4 ram gb. I think my machine spec is not lower than lowest requirement spec for this game. I have check how gpu run while I play this game and found that my gpu load under 30% at stable state and peak at around 50% when skill effect was appeared but I still think game didn’t use all of my gpu power to run the game. I think this is some kind of important bug that dev team must be interested in.
Ps. Im sure that I have already setting game to use GT820m run the game