Why Your Smart TV Is So Slow at Loading Apps

You press Netflix. The telly thinks about it. And thinks. Twenty seconds later the app opens, then spends another age loading the home screen. A smart TV that’s slow to load apps turns every evening into a test of patience — and it’s one of the most common complaints about modern tellies. The good news: it’s usually fixable without buying a new TV.

Why Is My Smart TV So Slow to Load Apps?

Smart TVs get slow because their processors and memory are far weaker than a phone’s, they accumulate cached data and background apps over time, their software gets bloated with updates, and a weak Wi-Fi connection makes everything feel slower than it is. A three-year-old smart TV often has the processing power of a budget phone from five years ago — manufacturers spend the money on the panel, not the brain.

Quick Fixes (Try These First)

1. Restart the TV properly. Not standby — a full restart. Unplug it from the wall for 60 seconds, then plug it back in. This clears the memory and kills stuck background processes. On many TVs you can also hold the power button on the remote for 5+ seconds to force a proper reboot.
2. Clear app caches. On Android TV/Google TV: Settings → Apps → select the app → Clear cache. On Samsung (Tizen) and LG (webOS), there’s no per-app cache clearing — instead, clear the browser cache and delete apps you don’t use.
3. Delete apps you don’t use. Every installed app consumes storage and some run background processes. If you’ve got twelve streaming apps and use three, remove the rest.
4. Check your Wi-Fi. Slow app loading is often slow internet, not a slow TV. Run a speed test on the TV if it has a browser, or just check whether your phone loads Netflix quickly on the same Wi-Fi. If the TV’s the only slow device, try an Ethernet cable — even temporarily — to confirm.
5. Turn off auto-updates and background features you don’t use — things like “always on” voice assistants and content recommendations can hog resources.

The Storage Problem Nobody Mentions

Smart TVs have tiny amounts of storage — often 4–8GB total, with the system eating half of it. When storage gets critically full, everything slows down, exactly like a phone. Check in Settings → Storage (Android TV) or the equivalent. If you’re under 1GB free, delete apps until you’ve got breathing room. This single fix has revived more “dying” TVs than anything else I’ve tried.

Update the Software (Yes, Really)

TV manufacturers do release performance updates, and an un-updated TV can be missing meaningful optimisations. Check Settings → Software Update. But be honest: if your TV is 5+ years old and the manufacturer has stopped updating it, no settings tweak will make Disney+ load like it does on a new set. Software support for smart TVs is notoriously short — typically 2–4 years of updates, which is rubbish compared to phones.

The £30 Fix: A Streaming Stick

Here’s the thing nobody at the TV shop tells you: the smartest upgrade for a slow smart TV is to stop using its smart features. A £30–£50 Amazon Fire TV Stick, Chromecast with Google TV, or Roku stick has a faster processor than most built-in TV software, gets updated for years longer, and turns even a sluggish five-year-old telly into a snappy streaming machine. Plug it into HDMI, connect to Wi-Fi, and never open the TV’s own Netflix app again.

I did this with my parents’ 2019 TV and they thought I’d bought them a new telly. It genuinely makes that much difference. It’s also the cheapest way to get Apple TV+ cheaply in the UK on an older set.

When It’s Actually Dying

Software slowness is fixable. These signs aren’t: apps crashing constantly even after a factory reset, the TV restarting itself, half the screen flickering, or Wi-Fi that won’t stay connected no matter what. That’s hardware failure, and on a TV more than a few years old, repair rarely makes financial sense.

The Bottom Line

Full restart, clear caches, delete unused apps, check the Wi-Fi — and if all else fails, a £30 streaming stick outperforms the built-in software of almost any TV. Before you blame the telly entirely, make sure your broadband is up to the job with our guide to what speed you actually need for 4K streaming. And if you’re casting from your phone instead, our guide to connecting your phone to a smart TV wirelessly covers that side of things.

Slow Smart TV: Questions, Answered

Why is Netflix slow but iPlayer fine (or vice versa)?

Different apps, different demands. Netflix buffers aggressively and adapts quality smoothly; iPlayer’s UHD streams need sustained high bandwidth and are fussier about fluctuations. An app-specific problem usually means that app needs its cache cleared or an update — not that your TV or broadband is broken. Clear the offending app’s cache first.

Will a factory reset speed up my TV?

Temporarily, yes — it wipes years of cached data, leftover app fragments and corrupted settings. But it’s a hassle (you’ll re-enter Wi-Fi passwords and log into every app again), and the TV will gradually slow down again as cruft reaccumulates. Try cache-clearing and app deletion first; save the factory reset for when the TV is genuinely unusable. And back up nothing — there’s nothing to back up on a TV, just your patience.

Are cheap TVs slower than expensive ones?

Generally, yes — and it’s the hidden cost of budget sets. Manufacturers of £250 TVs spend the money on the panel and put the cheapest possible processor and minimal memory inside. A £500 TV from the same brand often has a noticeably snappier interface. It’s the single biggest real-world difference between budget and mid-range TVs that spec sheets don’t show. Independent speed and usability testing at Which? is one of the few places that measures this properly before you buy.

How long should a smart TV stay fast?

Realistically 3–4 years before the software feels dated — apps get heavier with updates while the TV’s processor stays the same. Manufacturers typically provide software updates for 2–4 years, after which apps may stop updating entirely. The £30 streaming stick trick in this guide resets that clock: the stick gets updated for years longer than the TV’s built-in software ever would.