Yeah I'm not expecting my PC to handle it very well either to be honest, i predict i'll be playing on the lowest graphical settings possible with FPS at around 30 at most. Thing is that might be quite optimistic haha.
EDIT: Very first impressions..
When i first enter a server it lags like f*ck, freezing for maybe 6 seconds, then unfreezing, only to freeze again in the same way at least another 3 times, i suspect if there was a player or a zombie nearby while this was happening to me i would be killed, as i literally can't play or do anything useful while it does this.
Not being able to sprint up hills or slopes, no matter how small and slight the slope is.... Seriously? This needed fixing before they released the alpha, i literally can't run up a subtle hill sides, he stops sprinting and just walks until he gets back on level ground at which point he sprints again. Kind of flabbergasted at the retardedness.
Screen resolution is now normal but that's dropped the FPS by quite a bit and it's significantly laggy right now, even on the low graphical settings i have. (EDIT: Just made the settings even lower, everything on Normal pretty much and the FPS is back up to a playable state, but everything is now quite ugly and blurry.)
Game won't minimize which is f*cking annoying, the Windows button doesn't work and when i go to start task manager, it acts as if it's about to go to the desktop screen for a split second then just goes back to DayZ, so basically i have to fully exit the game to browse the web or do anything else.
Any advice for me would be greatly appreciated.