Do you really need three separate reverbs for three tracks, or will one do for the moment? Run plugins as send effects rather than inserts where possible. Production habits for trimming CPU cycles Although it doesn’t matter on semi-recent machines, you may want to disable graphic properties like smoothed fonts and window opening/closing animations. On very old computers, even the OS’s minor graphical display properties can make a difference. When you’re working with limited resources, you want as many as possible to be used for audio processing tasks. Close as many other programs and processes as you can in order to reduce the burden on your machine as much as possible.