i dont know if thats because a same issue, but also a lot of games i download just crash and when they close and i am again in my desktop there isnt any message telling me that it close because something, it just close, and while i play my temperatures, also fps, and the procesor never is used at 100%. (my build is an ryzen 5 2600 with an rx580 of 8gb and 8gb of ram)
