The fundamental inescapable fact is that 50% of the media isn't there, or whatever percentage perf you might be using. Worse, the 50% or whatever that isn't there is effectively black assuming it's being applied to glass.
That being the case you can dump ink on the media until it's washing off in waves and it won't have all that much effect on the brightness. The media is effectively 50% darker than solid media. Since the perf is effectively reducing the brightness by 50%, the most bang for your buck would be to increase the brightness and perhaps concomitantly the saturation of whatever it is you're printing. Assuming it's a bitmap.