1. An emotion tracking computing device, comprising: a processor; and a memory communicatively coupled to the processor, wherein the memory stores processor-executable instructions that comprise and, when executed by the processor, cause the processor to: receive a feed from a sensor at a default sampling frequency; analyze the feed to determine facial features of a user; determine a cause of a trigger to re-compute the default sampling frequency for the feed, wherein the cause is based on user movement, user emotional transition, and content characterization; compute a new sampling frequency based at least in part on the cause; and generate one or more instructions for the sensor to capture the feed at the new sampling frequency.