How to improve streaming quality

Start with the display path

Match resolution and HDR to what the HDMI cable and TV input support. A 4K label on a box does nothing if the TV HDMI port is 1.4 or the cable is damaged.

Turn off exaggerated sharpness and motion interpolation. Those features create edge noise that people mistake for a “bad stream.”

Then the network

Move the streaming device onto 5 GHz or Ethernet. 2.4 GHz with microwaves and neighbors is a common HD-looking stream that collapses during action scenes.

Avoid stretching a single mesh hop through several walls. Place a node in the same room as the TV if you can.

Then the device

Old sticks thermal-throttle. Give them airflow. Close unused apps on Android TV. Update the player from its official store.