Getting Speed Back Out of a Sluggish Device Before You Give Up and Buy a New One
Key Takeaways
Why Devices Slow Down — and Why It's Usually Fixable
A device that felt quick when new doesn't suddenly develop a mechanical fault at the two-year mark. Slowdowns are almost always the result of accumulated digital clutter, software layers that have grown heavier over time, and background processes that have multiplied without your noticing. Understanding what's actually happening makes the fixes far less mysterious.
Storage saturation is one of the most common culprits. Operating systems need headroom — free space they can use as scratch memory and for temporary files while processing tasks. When storage is nearly full, the system struggles to find that space and slows down noticeably. Background apps compound the problem by consuming RAM and processor cycles around the clock, even when the screen is off.
Software updates are a more nuanced factor. Routine updates often include genuine performance improvements, but some major version upgrades are optimized for newer hardware and can feel heavier on older devices. The key is distinguishing between updates that help and version jumps that may not.
If you've ever noticed your device feels fine but web browsing specifically is sluggish, the issue may not be your hardware at all. Our explainer on why internet speeds drop at night covers that separate problem. And if this situation has already escalated into something more serious, why device problems get worse before they get better explains the common mistakes that turn manageable issues into costly ones.
Back Up Before You Start
Before clearing storage, uninstalling apps, or changing system settings, make sure your important files, photos, and contacts are backed up to a cloud service or external drive. Some steps — particularly clearing caches or resetting settings — cannot be undone. A backup takes minutes and eliminates the risk of accidental data loss.
Work through the steps below in order — each one builds on the previous, and together they address the most common causes of slowdown systematically.
Device storage manager (built-in)
Identifies what is consuming storage so you can target deletions precisely rather than guessing.
Task manager or activity monitor (built-in)
Shows which apps and processes are actively using CPU and RAM in real time.
Cloud backup service
Safely stores photos, documents, and contacts before you make changes that could affect data.
External drive or USB storage
Provides a physical backup location for large files you want to keep but move off the device.
Step-by-Step: Recovering Lost Speed
What you will need
Restart the device fully — not just the screen
Sleep mode keeps apps and memory in their current state, including whatever is clogging them. A true restart flushes RAM (your device's short-term working memory), closes background processes, and clears temporary files that accumulate during normal use. Power the device completely off, wait ten seconds, and turn it back on. For many people, this single step produces a noticeable improvement before anything else is changed.
Check your available storage and free up space
When a device's storage is more than roughly 85–90% full, performance typically degrades. The operating system needs free space to write temporary files, manage virtual memory, and process tasks. Open your built-in storage manager (found in Settings on both phones and computers) to see a breakdown by category. Target the largest consumers first: downloaded videos, duplicate photos, app data, and old documents you no longer need. Move large files to a cloud service or external drive rather than simply deleting everything.
Audit and limit background app activity
Many apps continue running — checking for notifications, syncing data, refreshing content — even when you're not using them. This silently consumes CPU cycles and RAM. On smartphones, look for Background App Refresh (iOS) or Battery settings (Android) to restrict which apps can run in the background. On computers, open Task Manager (Windows) or Activity Monitor (macOS) to see what's actively consuming resources. Quit or disable processes you don't need running constantly.
Reduce startup programs (computers)
On Windows, open Task Manager and select the Startup tab to see every program that launches automatically when the computer boots. Disable any application you don't need immediately on startup — music players, creative software, chat apps, and manufacturer utilities are common offenders. On macOS, check System Settings > General > Login Items for the same list. Fewer startup programs means faster boot times and more resources available from the moment you log in.
Install pending software and OS updates
Operating system updates frequently include performance patches, bug fixes, and security improvements that directly affect how efficiently your device runs. Running outdated software can leave known inefficiencies in place. Check for updates in your device's Settings menu and install any that are pending. After updating, restart the device again to ensure all changes take effect properly.
Clear browser cache and review browser extensions
Web browsers accumulate cached data (stored copies of websites), cookies, and browsing history that can balloon in size over time. A large, fragmented cache can actually slow page loads rather than speed them up. In your browser's settings, clear the cache and cookies — you'll need to log back into websites, but load times often improve. Also review your installed browser extensions: remove any you no longer use, since each active extension consumes memory during every browsing session.
Adjust visual effects and performance settings
Animations, transparency effects, and visual transitions look polished but require processing power. On Windows, search for Adjust the appearance and performance of Windows and select Adjust for best performance or manually uncheck specific effects. On macOS, go to Accessibility > Display and enable Reduce Motion. On smartphones, similar options exist under Accessibility or Developer settings. Reducing visual overhead can make older hardware feel noticeably more responsive.
Build the Habit, Not Just the Fix
A one-time cleanup helps, but the devices that stay fast are the ones with good ongoing habits: regular restarts, monthly storage checks, and prompt updates. Think of it the same way you'd think about consistent maintenance for anything with moving parts — small, regular actions prevent bigger problems. The same principle applies whether you're caring for a device or, as our article on habits that extend your vehicle's lifespan shows, a car.
Don't Mistake the Internet for Your Device
A slow browser or streaming app can look exactly like a slow device but actually reflect network congestion rather than hardware fatigue. Before assuming your device is the problem, check your connection speed using a speed-test tool. If the internet itself is sluggish, device tweaks won't help — see our guide on why your internet slows down at night for network-specific fixes.
Once you've worked through these steps, most devices show a meaningful improvement. If the device is still struggling after all of these changes, it may be worth considering whether the hardware genuinely can't keep pace with current software demands — at which point a reset to factory settings (with a full backup first) is the most thorough software-level option. If you do eventually decide to pass the device on, see our guide on everything to do before a device leaves your hands to wipe it properly and protect your data.