If you're CPU-bound, you can't have greater throughput, by definition. Once you calculate your non-cpu latency (50% in my example) ceil(1/latency%) is your limit per core, before you start wasting resources.
You can't gain any more cycles, of course, but you can gain throughput by adding processes to an already cpu-bound app by giving faster incoming requests a place to go instead of sitting on the global queue while waiting for other requests to process.