Lg b9 instant game response

Looking for help. I have the LGB9 and I have an updated to the newest firmware and I'm using it with my Xbox series x. The problem I'm having is at 120 hz instant game response will flash on the screen every time I go to the dashboard or change games and sometimes it creates a screen flickering in between changing applications. Has anybody else had this problem and has there been any solutions. Thanks for your help