My Kbs drop to 0 to 200 when I stream single player games I dont know why

[gorugeGC]

Hi everyone In this days I encounter with a problem with my obs and is when I start to strem multiplayer games my stream looks good and my game too but htese days I try to stream diferent single player games like doom, the evilwith in,outlast and any of those work in my stream. My stream start to drop down my kbs and stay like that i dont know why I try to change the resolution, try to change the bitrate tr to change the server even I try with other stream services and nothing happen everithng is the same I dont know what to do would be helpful if anyone know what is happening because my internet conection is also good so I try to figure it out