Why Is My Smart TV So Slow? 10 Ways to Speed It Up

A smart TV that takes ages to open apps, lags when you press the remote or freezes on the home screen is frustrating — especially when the picture itself is still great. Fortunately, a slow TV can usually be sped up.

Here are ten practical fixes for a slow smart TV, from quick wins to the last-resort options. They’re part of our wider streaming troubleshooting guide.

Is it the TV or the internet?

First, figure out which kind of “slow” you have:

Symptom	Likely cause
Menus lag, remote responds late	TV hardware/software
Apps take long to open	TV storage, memory or app updates
Videos buffer or look blurry	Internet or Wi-Fi
Everything slow after an update	Software; often settles after a restart

If videos buffer but menus are fine, jump to our guide on improving Wi-Fi for streaming.

1. Do a proper restart

Pressing the power button on many TVs only puts them into standby. To truly restart:

• Use the TV’s Restart option in settings, if available, or
• Unplug the TV from the wall for at least 60 seconds, then plug it back in.

This clears memory and stops background processes. It’s the single most effective quick fix.

2. Install software updates

TV makers release updates that fix bugs and improve performance.

• Go to Settings → Support/General → Software update (names vary).
• Turn on automatic updates.

3. Update or reinstall slow apps

An outdated app can be slow or unstable. Update apps through the TV’s app store. If a specific app is consistently slow, uninstall and reinstall it — this clears its stored data. Our guide to fixing a streaming app that keeps crashing covers app-specific steps.

4. Clear app cache and data

Apps store temporary data (cache) that can grow large or get corrupted.

• On Google TV / Android TV: Settings → Apps → choose the app → Clear cache.
• On other platforms: options vary; some offer “clear cache” for apps or the browser, others require reinstalling the app.

5. Free up storage

Smart TVs have limited storage. When it fills up, everything slows down.

• Uninstall apps you don’t use.
• Remove downloaded games or large apps.
• Check storage in Settings → Storage or Device care.

6. Close background apps

Some TVs keep apps running in the background. Use the TV’s device care or memory tool if available, or simply restart the TV after long sessions.

7. Turn off features you don’t use

Some features run constantly in the background:

• Instant on / Quick start — keeps the TV partially awake. Turning it off can make start-up slower but sometimes improves stability.
• Viewing information / ACR — samples what’s on screen; switching it off can also improve privacy. See smart TV privacy settings.
• Autoplay previews on the home screen.
• Unused voice assistants or always-listening features.

8. Check the network connection

A weak connection makes apps slow to load menus, artwork and recommendations — not just video.

• Use 5 GHz Wi-Fi or Ethernet.
• Restart the router.
• Check whether other devices are using lots of bandwidth.

If you’re unsure which connection to use, see Wi-Fi vs Ethernet for streaming.

9. Reset network or picture settings

If the slowdown started after you changed settings, try:

• Network reset — re-enter Wi-Fi details afterwards.
• Reset picture/sound settings — rarely the cause of lag, but worth trying if menus became sluggish after a change.

10. Factory reset (last resort)

A factory reset returns the TV to out-of-box condition, clearing everything that may be slowing it down.

Before you reset:

• Note your Wi-Fi password and app logins.
• Check that you know your streaming account passwords.
• Note any custom picture settings you want to recreate.

Then use Settings → Support/General → Reset or Factory data reset. Re-install only the apps you actually use.

When to stop fixing and upgrade

If your TV is several years old, its processor and memory may simply not keep up with modern apps. Signs it’s time:

• Still slow after a factory reset.
• Apps stop being supported or disappear from the store.
• No more software updates from the manufacturer.

Rather than replacing a TV with a good picture, add a streaming device. It’s cheaper, faster and gets updates for longer. Our guide to choosing a streaming device compares the options. And if the picture itself is also disappointing, our smart TV buying guide explains which features make the biggest difference in a replacement.

Platform-specific quick fixes

Platform	Proper restart	Free up space / cache	Software update
Samsung (Tizen)	Hold the power button on the remote until the logo appears, or unplug	Device Care → Manage Storage	Settings → Support → Software Update
LG (webOS)	Unplug for 60 seconds	Remove unused apps from the app list	Settings → General → System → Software Updates
Google TV / Android TV	Settings → System → Restart	Settings → Apps → Clear cache	Settings → System → About → System update
Roku TV	Settings → System → Power → System restart	Remove unused channels	Settings → System → Software update
Fire TV Edition	Settings → My Fire TV → Restart	Manage installed applications	Settings → My Fire TV → About

Exact menu names vary by model and software version.

Example: a typical slow TV

A common scenario: a smart TV a few years old takes ages to open its most-used app. It only ever goes into standby, so it hasn’t fully restarted in months, and its storage is nearly full of apps installed during setup and never used. A proper restart, removing unused apps and clearing the main app’s cache usually brings back much of the original speed — and if the picture is still excellent, there’s no need to replace the TV.

Habits that keep a smart TV fast

• Restart properly every week or two, not just standby.
• Install only apps you use; remove trial apps after setup.
• Keep software updated but restart after big updates.
• Turn off features you don’t use, such as viewing data or autoplay previews.
• Give it a strong connection — slow networks make menus feel slow too.

Keep it fast

• Restart the TV properly every week or two.
• Keep apps and TV software updated.
• Uninstall apps you no longer use.
• Use a stable network connection.

The bottom line

Most slow smart TVs recover with a proper restart, updates and some storage housekeeping. If they don’t, a streaming device breathes new life into a TV that still looks great.