Growing your real-time network infrastructure increases the pressure on backend services, especially billing, which becomes in most of the cases the bottleneck of the products offered. In this talk Dan will exemplify various mechanisms and strategies implemented in CGRateS for improving the speed of CDR rating and implicitly offloading the rest of components waiting for billing to occur. CGRateS is a battle-tested Online Charging System with support for Prepaid, Postpaid, Pseudo-prepaid and Rated charging modes.