any recommended settings for visual performance for a shooter?

game feels and looks worse about every week. i used to get 144 fps and now im barely getting 60, settings havent changed but updates that i thought wouldve made it better in someway make it worse...
this is tiring at this point, havent played another game or BF game that has this happen this often. id love to enjoy the game like i once did.
if anyone has any tips, id appreciate it, thanks in advance!