Thank you for your answer
How can I find the process in the log file ?
Is a program like plays.tv or shadowplay (screen record) could be at fault ?
If the cpu is at 100% usage, could moss triggers those “F” ?
Because if I put the fps cap at 60 + Vsync in the game I am not lagging (but it’s not really a solution because I have a 144 hz screen + the input lag is quite noticeable)