For some reason I get incredible lag when I play on large servers that have tens of thousands of bricks. Even with everything set to minimum, I still get terrible lag (10-15 fps) despite the fact that my computer isn't the worst out there.
2.66 GHz Intel Core 2 Duo
nVidia 320m with 256mb VRAM
8 GB DDR3 RAM.
In comparison I can pull a steady 25-60 FPS in Counter-Strike: Global Offensive and a good 50-90 FPS in Day of Defeat: Source.
Any ideas on why this occurs?