The model of the Android tv is 4t-c50bk1x Sharp and the Bluetooth speaker is Sharp speaker system cp-st70c2, it's brand new, only 2 days old, and the speaker is a freebie or included with the purchase of the tv,
The sound is lagging, like it's a wave where there's sound then none then there's sound then none, Sounds like this https://m.youtube.com/watch?v=dABuMRGDfPY
But if i connect the Bluetooth speaker to my phone, the sounds it produced becomes normal...
How do i fix it?
It depends on the version of BT on your tv and speakers, the content you are trying to watch, the things that are near your speaker/tv. Its always better to connect your speakers via a cable for better results. Most of the new TV's and speakers come with HDMI, so better connect through HDMI.