End of stage performance loss

Hello I would like to report massive performance loss when going over a certain point near the end of the stages it can go from 110-120fps down to about 70fps but really bad immersion I don't know if the game is bugged, could potentially be a AMD problem as a lot of people getting this loss are on AMD cards my specs are as follows and any  info on this problem would be greatly appreciated it's making me go insane 

Window 11, Ryzen 5700x OC 4.8, 4000mhz Team Group Xtreem "8Pack Edition" 16GB ram, rx 7800 xt 16gb hellhound, tomahawk B550 mb