Drawdown fps very often (Call of Duty: Warzone)

I have a laptop. Video card: GeForce 1050 Ti 4GB. CPU: intel i7 7700 HQ. RAM: 8 GB. Well, a terabyte of memory. Running in the game, very often squander fps, mostly moments ekshona. Without these posadkov FPS is around 80-140, but during the shooting abruptly drops to 5-30, and because of these posadkov becomes impossible to play. I tried to put the paging file on the HDD - didn't help, tried using GeForce experiance to put the minimum on the performance of the Nvidia GeForce set high performance battery for high performance. How can I solve the problem? Friends 16GB operatives, but much weaker than the rest of the iron, they have no lag.