Bad performance on OP Underground im the only one who get less than 50% usual fps on the new map?  
i have a:

i7 6800k  
rx 580 8gb  
16gb ram 3000mhz  


every other map i still play with 100+fps on 1080p,on op underground my fps drops to 20 some times and i cant reach more than 65,even in low  graphic settings.