Fire floors causing MASSIVE fps drops

In the past, there have been a lot of issues around ground effects causing FPS drop. I, personally, never experienced it. I always ran things perfectly fine

But the large scale fire traps in the labyrinth are absolutely destroying my ability to play it. Whenever they start to glow, my fps plummets. If its one of the bigger ones, it drops my fps to well below 1fps. i may be getting a frame every 3 seconds. I have spent literally hours at this point trying to get my CI guy through the normal labyrinth, and nearly every time i encounter a fire trap i die, because i cannot tell if i am standing in the fire or any other trap around it