Sudden lock of FPS from boosters

So i recently installed FH4 again and my game usually has a lock of 240fps later on i had installed Razer Cortex but after uninstalling it thinking it wasn’t helping all of a suden my game starts stuttering when i start and then my FPS gets locked from 240 to 60 i managed to fix the stutter but my FPS is still stuck to 60 hopefully whatever this is can get fixed cause it happened so randomly. P.S. hopefully ill get a response for a possible fix.