Whenever I disable Framebuffer, I start getting corrupted graphics, that are simply not there when using Framebuffer. Take a look at the black things at the back of the limbs on the purple-and-gray ship.
With Framebuffer Disabled:
With Framebuffer Enabled:
My computer's stats are:
Intel i5-3210M
Intel HD 4000/AMD Radeon HD 8750M
8Gb Ram
This problem wasn't there a few years back, possibly the changes to the graphics rendering system did something. The game runs fine otherwise, aside from a terrible framerate (in crowded areas this drops to single digits, normally it's around 20-30, and goes up to 80 in empty sectors).