i have been trying to fix this for months and trying to get an answear but people just come and leave. please try and healp me with this, BO2 runs fine on some gamplay sessions and on others it just goes to 10 fps, i can run BO1 MW3 and GTA5 at 90 fps, so i dont know whats wrong.
From NVIDIA Control Panel
3D Settings->Manage 3D Settings
Tab "Program apps"
you are going to want to add
the plutonium-bootstrapper-win32.exe as a application if you dont know where that is its here
C:\Users\your name here\AppData\Local\Plutonium\bin
Keep in mind that the AppData is a hidden folder in windows and either need to use the windows key + r for run and doing %appdata% or turn on the option to show hidden files
but then after that is doing in the settings for then now added application you want to go to
Preferred Graphics Processor
Select : High performance NVIDIA rocessor