There could be several reasons for the high latency you are experiencing with your Redmi Buds 3 Pro. Here are some troubleshooting steps you can try:
1. Check your Bluetooth connection: High latency can be caused by a poor Bluetooth connection. Make sure that your Redmi Buds 3 Pro are properly paired with your device and that there are no other devices interfering with the Bluetooth signal.
2. Check your audio codec: The Redmi Buds 3 Pro supports the aptX Adaptive audio codec, which is designed to reduce latency. However, not all devices support this codec. Check if your device supports aptX Adaptive or try switching to a different codec to see if it improves latency.
3. Disable any audio enhancements: Some devices have audio enhancements that can introduce latency. Try disabling any audio effects or enhancements on your device to see if it improves latency.
4. Reset your Redmi Buds 3 Pro: Resetting your Redmi Buds 3 Pro to their factory settings can sometimes fix latency issues. To reset your buds, put them in the charging case and press and hold the button on the back of the case for 15 seconds.
5. Update your firmware: Make sure that your Redmi Buds 3 Pro are updated to the latest firmware version. You can do this by connecting them to the Mi Home app and checking for updates.
If none of these troubleshooting steps solve your latency issue, it may be worth contacting Xiaomi customer support for further assistance.