"My iPhone has been lagging a lot ever since I updated to iOS 18, the smoothness is gone, anybody else's iPhone運行緩慢?" Muck like other digital devices, an iPhone will become slower and slower as time goes by. While an iPhone is an advanced smartphone that delivers a smooth experience, the performance is not always excellent. This article explains how to fix this issue and let your device run smoothly again.

Part 1: Why iPhone Runs Slow

There are lots of reasons why is your iPhone so slow. Before fixing this problem, you'd better understand why it happens on your device. Here are some of the most common reasons below:

1. Malware and other junk files are clogging up storage space.

2. Your software is outdated.

3. The internet connectivity is poor or your iPhone connects to a weak Wi-Fi signal.

4. Your iPhone settings aren't optimized.

5. Your iPhone battery is deteriorating.

Part 2: How to Fix a Slow iPhone

解決方案1：重啟iPhone

Although restarting an iPhone is simple, it can help with iPhone speed and improve performance. After the iPhone restarts, the background apps will be closed, releasing more free space.

步驟二 按住 側 or 睡眠/喚醒 按鈕，直到出現關機屏幕。

步驟二 Move the slider to the right side and wait for your iPhone screen to become black.

步驟二 接下來，長按 側 or 睡眠/喚醒 按鈕，直到出現Apple徽標。

解決方案2：清除緩存

If your iPhone or iPad is running slow when using Safari, you need to clear the iPhone cache, remove browsing data, and delete cookies. Bear in mind that it may take a longer time to reload a website after clearing the cache.

步驟二 前往 設定 應用程序從您的主屏幕。

步驟二 選擇 應用程式 選項卡並選擇 Safari.

步驟二 敲打 清除歷史記錄和網站數據。 接下來，點按 清除歷史和數據 在警報框中確認操作。

解決方案3：更新軟件和應用程序

It is always a good idea to keep your iOS up to date since Apple fix various bugs in updates. If your iPhone runs slower and slower, you will need to update software and apps on your device immediately.

步驟二 打開 設定 應用程序。

步驟二 選擇 關於你的刊登物: 並點擊 軟件更新 搜索可用的更新。

步驟二 If one is available, tap the 下載並安裝 button and follow the prompts to update the software.

步驟二 返回到 設定 屏幕，選擇 App Store，然後開啟 應用程序更新. Then, the App Store will update your apps automatically.

Solution 4: Enable Reduce Motion

While the iPhone doesn't have a lot of graphic settings, you can fix the iPhone's running slow by enabling Reduce Motion. That can reduce the work the CPU puts into displaying fancy graphics and make your iPhone run faster.

步驟二 前往 無障礙服務 標籤在你的 設定 應用程序。

步驟二 敲打 顯示和文字大小，然後開啟 透明度降低.

步驟二 Back to the previous screen, tap 運動，然後開啟 減少運動.

解決方案 5：禁用後台應用程序刷新

Even if you close apps on your iPhone, they still run in the background. You can receive notifications and messages. However, they use your memory and CPU. As a result, they slow down your device. You can stop the app from refreshing in the background.

步驟二 前往 關於你的刊登物: 標籤在你的 設定 應用程序。

步驟二 敲打 後台應用刷新.

步驟二 切換關閉 後台應用刷新 選項。

Solution 6: Fix Software Issue

If the solutions above are unavailable, you need a powerful system repair tool. For instance, Apeaksoft iOS系統恢復 can automatically detect software glitches automatically, and you can fix them quickly.

Here are the steps to fix an iPhone running slow:

步驟二 掃描你的iPhone

Launch the best iOS system repair tool after installing it on your PC. There is another version for Mac. Choose iOS系統恢復, and connect your iPhone to your PC with a Lightning cable. Click the 開始 button to scan software glitches.

步驟二 選擇模式

在操作欄點擊 免費快速修復 link to fix your issue. If invalid, click 修復 並選擇 標準模式 or 高級模式。 點擊 確認 按鈕繼續。

步驟二 Fix the iPhone running slow

Check and confirm your device information and download the necessary firmware. When the download is completed, the software will fix your software glitches immediately.

Part 3: How to Fix a Slow iPhone by Factory Reset

The ultimate solution to fix an iPhone running slow is factory resetting. However, if your screen slows and freezes, you'd better use Apeaksoft iPhone橡皮擦 to complete the job. It enables you to erase any iOS device without restrictions.

How to Fix a Slow iPhone by Factory Reset

步驟二 連接到您的 iPhone

Install the best iPhone eraser on your computer and open it. Plug your iPhone into your computer with a USB cable. Once your device is detected, click 刪除所有數據.

步驟二 選擇一個級別

Now, you will see three erasing levels, 低, 中間名和 高. Select a proper level according to your situation.

步驟二 恢復出廠設置

最後，點擊 開始 button to begin factory resetting your iPhone. It may take a while. When it finishes, your iPhone will restart and display the Hello screen.

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