PLEASE HELP! game freezes every 3 secondes


hi , I have encountered a very serious problem for about 1 month. My game doesn’t stop freezing every 3 seconds and that for the entirety of the match , it is very problematic because I can no longer play. to better detail the thing, I launch the game, I have no worries so far but as soon as I join the match the game feezes every 3 seconds (freeze time 1sec). I have a good ping so the internet connection is not the problem , i also redownloaded the game and it does it again. Also it does this for all matchmaking ( competitive or else ) . I hope you will find a solution and I await your answers , cordially .