Changing these 6 TV settings instantly sped up its performance
Briefly

The simplest fix can sometimes be the quickest fix, so let's start with the most basic function -- an old-fashioned reboot. Before proceeding with more advanced troubleshooting methods, access your TV's settings menu and look for a Restart option.
This cache can become full over time and cause slow performance. Navigate to your TV's settings and locate the Clear Cache option. If you're experiencing issues with specific apps, like Netflix or YouTube, you can also clear the cache for individual apps.
Modern TVs have plenty of features and apps (and services that run in the background) which can leave them bogged down over time. Fortunately, there are some simple actions to take that might just rectify your flatscreen's sketchy performance.
All smart TVs have a limited amount of random access memory (RAM), which ultimately dictates its speed and functionality for streaming and playback. And unlike many computers, there is no way to upgrade your RAM because it is integrated directly.
Read at ZDNET
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