I have experienced performance issues on Nasdara as well. Offical servers as well as un-modded community servers. I tried to lower my graphics settings but that didn't help really. Objects are loading in too slow when doing horizontal swipes with the mouse. Also random crashes, yeah. DayZ ran really stable for me, never had crashes mid-game before. The weirdest thing is that sometimes looking through a scope (ATOG and Sportsmain Sights) the game lost crazy fps even after looking through it. It remained los fps for minutes, then recovering. I even had a full freeze one time with the Sportsman Sights. Never had anything like that before.