The traffic-limit inbound command limits the rate of the packets matching an ACL, whereas the qos lr inbound command limits the rate of all packets on an interface. If both of them are configured, they both take effect. However, the actual traffic rate is limited by the smaller CIR. If you want to limit only the rate of incoming packets matching an ACL, the two commands have the same effect. If you want to limit the rate of all incoming packets, choose a proper command.