Does the Redmi Buds 6 Play support low latency mode?

It supports low latency. In non-call situations, open the top lid of the charging case, remove and wear the left and right earbuds, and press and hold the touch area of the left and right earbuds for 1.5s to turn on/off low latency mode or select the low latency mode in the more settings of the Xiaomi Earbuds APP. Its low latency time can be optimized to 330-336ms (latency data will vary slightly depending on the phone used).
The low latency mode of Bluetooth earbuds is a special mode designed to reduce audio transmission latency, especially when playing games or watching videos, to provide a smoother audio and video synchronization experience.
Note:
In the low latency mode, closing the lid of the charging case will close the low latency mode. The next time you open the charging case, you need to press and hold again to turn on the low latency mode.