Major FPS drops on all maps

[sharpshootertrig]

It doesent matter what map i play, after about 15 minutes of gameplay medium quality i go from having 80-90 FPS to having 15-20 FPS then it just goes down to 5 or so FPS.
I honestly have no idea what the problem is, it only started happening after the release of the latest patch.
Its a shame because i really enjoyed this game and i will miss out on the new map packs

System specs:CPU
Intel Core 2 quad 2.66 GHz
Memory Corsair XMS2 4GB PC-6400 800 MHZ (2 x 2 GB)
Graphics Card NVIDIA GeForce GTS 250 - 1 GB - (Gainward)
Motherboard Asus P5KPL/1600 1333FSB (Intel G31)
Power Supply 700W PSU
Hard Drive #1 640 GB SATA-II HDD 7200 16MB
Help i can play ArmA 2 on high-very high lol

[Ghost231]

I have the same problem. However, my CPU is much weaker (AMD Athlon X2 64 4000+ , 2.1Ghz)

I was playing one of the new maps, it started great and after 10 minutes or so, the game started heavily lagging. I never had that problem before and I could play on any map Very High.

[Garack]

https://www.realitymod.com/forum/f26-pr ... -maps.html

^^go here