I believe the issue you're having is caused by the steady ping feature on the R3. If you disable steady ping and restart the game/app it will go back to what you previously had for a ping when searching for a game in Warzone. In my case i get a 30 ms ping when searching for a game with steady ping off vs 45 ms ping when i have it on. That being said i believe thats how the steady ping feature works by slightly raising your ping it's able to absorb jitter/lag spikes which will improve your game play. And explains why your seeing an increase in ping when searching for a match.