I bought the Steam version of these games in order to play the Mod DayZ. When I first got the downloading and installation done, the games ran somewhat without any form of lag. Then the modding part came, using a third part launcher, dowloading Beta, etc. And then the lagging came BIG TIME. 5-20 sec freezing, but the mouse worked perfect. I tried in desperation to config the options to make it run smooth, but no luck.
Then I deleted the whole modding part, removing the files that allso were on the program files section, but the game still lagged. I deleted the game and downloading it again. I now run only the vanilla (clean) part of the game. But both ArmA2 and OA lags like hell. Combined Operations, CO, runs somewhat good now, but it still have up to 10 sec freezes.
I've tried putting the lowest config on most of the options, including shading and visability to around 1000.
My information is:
Windows 7 Home Premium
Classificasion: 5,1
Processor: AMD Athlon II P320 Dual-Core Processor 2,10 Ghz
RAM: 6,00 GB (5,74 availble)
Systemtype: 64-bit
Thanks :)