fps drop

After loading the Aspen Grove terrain, there are some strange black objects above me, terrible FPS and the game will crash almost immediately.

Before it happened i was getting around 40-30 fps (yes my computer sucks it literally has an Intel 530). Now after it im getting lower than 20 at all times. I triple-checked my settings and nothing's changed, it started after my game wouldn't respond after 9182378 tries. (exaggerated, but it...