Pc lags during second match

[Demianas 0]

This bug always apear during second match after i launch the game, this bug reduces game's fps.

During the first match after i launch the game everything works fine and game runs on 60fps and higher.

Then i enter to second match and everything starts to lag on 20 fps, i dont know why this happens.

And my pc stats: nvidia geforce gtx 1060 graphic card, 8gb ram and proccesor intel core i5.