I'll start from the top, when I play singleplayer I can play on high settings at 20-30 fps. But when I go to multiplayer and load up..say "Takistan Life" I will get 5-20 fps on very low settings. I only get low fps in multiplayer, not singleplayer. I asked my friend what the problem is and he said that it's something to do with the "networking" or something..I'm not sure. He said it's a build up of network code, not sure if that's true or not. Ahh, one other thing, I play DayZ with the map "Panthera", i play on normal settings and get 25+ fps. I play on chernarus, I get 15+ fps on very low settings. I'm not sure if this is the "networking" build-up, the map or something completely different.
My Specs -
CPU - Intel Core 2 Duo P8600 2.4 GHz
GPU - Nvidia GeForce 320M
RAM - 2GB
Thanks, Kanga