Disabling audio inputs

[Ukki1]

Hi,

Is it possible to disable audio inputs of my audio interface in Reaper, similar way as in Ableton Live? Wondering if it could lower CPU usage of my mid-2010 Macbook Pro. Interface is Duo-Capture Ex from Roland.

[Stella645]

At a wild guess I'd say the enable inputs tickbox in audio setup might be way

But I'd imagine it's the stuff you add to the project, not two unused but enabled inputs that are using up your cpu.