Maybe it’s all the shiny stuff? Those maps shred my performance. Frames drop into the 30’s. It becomes almost unplayable, I can’t aim, see what’s happening, etc. I am using a Radeon R9 390. All the other maps work fine, framerates in the 100-200’s on average.
Other games on my PC run flawlessly. Even Battleborn runs fine. Just not those maps.
It’s at the point where I have to leave the matches when it happens. 
is there any setting on my machine that could help?
Right now it’s set to
shadows: medium
particles: normal
vsync: off
framerate: unlimited
anistropic: 4x
bullets: mnedium
foail distance: far
texture: very high
view distance: high
resolution: 640x480 - 1920x1080 (this doesn’t seem to change anything) No matter what I set the resolution, it always gives me the same frames, and looks exactly the same.
everything set to ON, motion blur: off
I have all the updated drivers for my card.