Even after more than two and a half years since its debut, the Galaxy S23 Ultra isn't a slow device by any means. However, it is no longer the fastest. With the Galaxy S26 Ultra around the corner, the S23 Ultra is about to turn three years old in a few months. It might begin showing its age and you may have already noticed some performance drops or occasional hiccups.For this reason, we compiled a list of actions that might help you revitalize your Galaxy S23 Ultra. Some are less obvious than others, but every little bit can help in maintaining your S23 Ultra in good order. These tips can help you improve your 2023 flagship phone's performance.How to keep your Galaxy S23 Ultra running fastThe Snapdragon 8 Gen 2 chip inside your Galaxy S23 Ultra is still one of the best. Plus, with at least 8GB of RAM and 256GB of UFS 4.0 storage, the S23 Ultra should be able to keep up with other, newer phones on the market, as long as it is maintained correctly.Here are some things you can try if you're starting to notice performance drops on your Galaxy S23 Ultra.Make sure you are running the latest firmwareThe Galaxy S23 Ultra has already received two major OS upgrades and should soon receive a third one in the form of One UI 8. Aside from that, every new security patch can help maintain your phone.To make sure your device runs the latest firmware version available, access the phone's Settings app, tap Software update, and select Download and install.Enable auto-restart or reboot your phone manuallyYou're probably restarting your PC or laptop on a regular basis, but smartphones are usually expected to perform flawlessly without interruption.However, your phone can slow down if it isn't occasionally restarted. You can do this manually, or you can enable the Auto restart option in the Auto optimization menu. To do this:Open the Settings app, access Device Care, tap Auto Optimization, select Auto Restart, and choose whether to allow your phone to auto-restart when needed or according to a schedule you can set manually.Monitor and manage the phone's storage and memoryThe status of your Galaxy S23 Ultra's storage and memory can also affect the performance of your phone. Over the years, you may have filled up your phone's storage with videos, photos, and apps, resulting in sluggish performance.As a rule of thumb, you should keep around 10% of your phone's internal storage free at all times. If your phone's storage is full, it can lead to system slowdowns.As for managing and monitoring your phone's RAM, you can open the Settings app, access Device Care, go to Memory, and tap Clean now.You can also select Memory resident apps to see if there are any apps that run in the background all the time. Too many resident apps can slow down your phone.Uninstalling unused appsWe sometimes install mobile apps we think we might need but end up never using. Although these apps are often put to sleep automatically by your device, it never hurts to completely uninstall them.The process can free up system memory and storage and help your phone perform better. You can uninstall unused apps by tapping and holding their icons in the apps drawer.If an app can't be uninstalled, you can try gaining performance by disabling it.Avoid using live wallpapers or too many widgetsLive wallpapers and widgets can help you personalize your Galaxy S23 Ultra experience, but the older your phone gets, the harder it will be for it to keep up with all the new visuals in One UI.If you use too many widgets or a live wallpaper, consider going back to the basics, cleaning up the home screen, and removing some of the widgets you rarely or never use.Make sure your Galaxy S23 Ultra runs on the standard performance profileIt is possible that, at some time in the past, you may have switched the performance profile on your phone from Standard to Light. This helped you gain battery life and cool down your phone on hot summer days.However, if you want to maintain your phone's snappy performance, you should switch back to the Standard profile — if necessary. This profile offers the best (recommended) balance between speed, battery life, and cooling efficiency.To check whether your phone is on the Light performance profile, open the Settings app, go to Device Care, and tap Performance profile. If necessary, select the Standard option.Tweak UI animations for faster responseFor performance and perceived performance gains, you can try to go deeper under the Galaxy S23 Ultra's hood and tweak some settings in the Developer options menu.Particularly, you can tweak UI animations to make the phone feel more responsive. Although changing UI animation speeds won't make your phone's SoC any faster than it is, it can increase responsiveness.In other words, you can make the UI seem faster, but your phone will perform the same in mobile games and other apps, regardless of how you set your animation speeds.NOTE: Changing other settings in the Developer Options menu can cause issues on your phone. Enable and access the hidden Developer Options menu at your own risk.You can access the hidden Developer options menu on your Galaxy S23 Ultra by opening Settings, navigating to About Phone, selecting Software Information, and tapping Build Number several times until you see a pop-up informing you that Developer Options have been enabled.Then, go back to the Settings app, access Developer Options, and tweak the Transition Animation Scale, Window Animation Scale, and Animator Duration Scale to your liking.Alternative UI tweaking settingsIf you would like to speed up or cancel UI animations without accessing Developer options, you can try reducing animations and blur effects from the Accessibility menu. This will entirely remove some animations and speed up the UI.Open Settings on the Galaxy S23 Ultra, go to Accessibility, tap Vision enhancements, and toggle the Reduce animations and Reduce transparency and blur switches ON. 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