connect and ping

Hello everyone. In every match I have problems with ping and packet loss, as indicated by the indicators in the game. At the same time, everything is OK in the game menu, before the match starts, my ping shows 12ms. I have all these problems in all modes, except rush. Everything is fine there. I have no problems with the Internet, all other online games where stable ping and no packet loss are important do not have such problems. Does anyone have such problems? And how can I fix it, because it is impossible to play