Check clock master settings. In any digital audio configuration, there can be one, and only one master clock, or else you will likely experience audible clock errors. All other digital audio devices must be configured as slaves to the designated master clock. Since the Aurora’s SynchroLock technology provides an extremely stable and jitter-resistant clock, we recommend setting the Aurora as the master clock in your digital audio system. If you choose to use another device as the sample clock master, make sure that the Aurora and any other connected devices are set to the appropriate clock source setting.
Also, check try increasing the buffer size in your audio application. This parameter is usually in a settings or preferences menu.