Polling rate delay is the setting you are looking for, and I believe 4 is 125Hz.
Looking for someone that  knows how to change the polling rate of an AW610M mouse? I found a setting for Polling Rate Delay in the AWCC (Alienware Command Center) but it just have numbers from 1-4, no Hertz mentioned. My goal is to change my mouse from 1000Hz to 125Hz. Does anyone have information on how to achieve this?
AW610M mouse, change polling rate?