If I use Bluetooth speaker, I can see how the audio will not play at the same time with the image. Latency is short but too noticeable.
The same latency is with Bluetooth devices such as with Bluetooth gaming controller. Using SteamLink and Bluetooth controller makes playing uncomfortable when controller has too much latency. PC is connected with high speed LAN cable, so the latency between computer and TV is not the issue. Checked this from Steam's information.
Is there way to make Bluetooth "faster"?
Fingers crossed! You have a tablet so you have bigger change to get a fix with update unlike my TV which has a small memory space and TV is 3 years old so it will not get updates anymore (because Samsung)