18 days old, I know but yeah, my performance hasn’t gone up in BL2 either lol.
As for crashes like that, it’s not particularly uncommon to get crashes like that in BL2, and it probably has little to do with your RAM. Some useful things you can do are to reinstall your Graphics drivers and your PhysX drivers, as that’s basically what’s going to be interacting with the game. I recall there being issues with certain networking devices but I can’t remember the specifics, so if you have drivers for those as well, reinstalling them can help.
But sometimes the game just decides to crash with some interesting error messages. If it’s not consistent, it’s safe to ignore it, really.
As for general performance issues you can look at, Microsoft’s been toying around with DirectX9 for a while now, wasn’t too long ago that only 4GB of VRAM could be used at one time. Something else you could try to help alleviate these issues is to turn off fullscreen optimizations.
It’s a bit of a misnomer, all it actually does is help Windows put the program in a pseudo fullscreen mode so it can display stuff over your window.