High ping in zombie mode (Call of Duty Black Ops: Cold War)

High ping in zombie mode or "whether I'm a fool or skis don't go"
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CPU: Core i5-3570K
RAM: 16GB DDR-1600
GPU: RTX 2060 6GB
SSD: Goodram CX400
OS: Windows 10 Pro / Enterprise 20H2
NVIDIA Drivers: 461.92

Internet Speed: 100 mbit / s
NAT Type: Open
Game Ports: Open in Router
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In a multiplayer game, there are no problems with ping. But in any of the zombie modes, an orgy begins: every time it throws it to the dudes with a ping of 200 or more, it's impossible to play! One out of a hundred attempts will throw me to a person with a ping of less than 100, but this is not for long at all, I may soon be thrown out of the game and I will not be able to play more with people ("it is impossible to join the team (3)", and hell understand what kind of mistake it is and how to compete with it) ... If you play alone (solo or private game) - the ping shows 19-21, maybe a friend will still connect from the console, but an open game turns into pain and suffering!
What am I doing wrong or what I didn’t do to stop the ping orgy? How to start an open game but at the same time know for sure that I am the host? Pamagiti ...