Low FPS on reworked big team maps

Has anyone been having major fps drops on the new reworked bigteam maps? Its really frustrating to be in the middle of a gunfight and have huge frame dips that were not a problem on the older maps. Im wondering if its has something to do with my setup or is in fact just the game not being able to keep up.

Oddly enough for as good as some of those maps are I haven’t even noticed any drop what so ever? Then again I have only played a few matches.