Fix Safari Running Slow on macOS Mojave 10.14: speed up slow internet connection on Mac

Oh, Safari Running Slow? Apple user has one of the finest web browsers that is Safari. Apparently, there are more users of Google Chrome are available in the market compared to Apple’s Safari. However, the reason behind this is, the person who have Mac or iPhone they face any problem in Safari, they move to Google Chrome.

Instead, they should try to fix Safari complications like Safari running super slow on macOS Mojave, Safari won’t open, Safari won’t load page and more. There is a way through which you can get solutions to all these problems. So let’s get started with them to Speed up slow internet connection on Mac.

Top 10 Tips to Fix Safari Running Slow on MacBook, MacBook Pro/ Air with Mojave

Fix Speed up Safari Running Slow on macOS Mojave 10.14

Solution 1: Clear Cache, Extension, and History

If your day begins and ends with Mac and Safari, then you probably should clear cache, extensions, and history periodically. They simply eat your Mac’s storage and slow down the Safari. It is worth deleting all this and makes some space.

Step #1: Open “Safari”.

Step #2: Click “Preferences” and open “Advanced”.

Step #3: At the bottom click to enable the “Develop” menu in the menu bar.

Step #4: Head over and click on “Empty Caches”.

Step #5: Now, again click on “Disable Extensions”.

Step #6: Go back to the “Safari” menu and click on “Clear History” instead of Preferences.

Solution 2: Manually clear Cache.DB file

The above solution must work properly, but if in case anything goes wrong or cache isn’t deleted then try this one.

Step #1: Open “Finder

Step #2: Click “Go” and then click on “Go to Folder”.

Step #3: Enter the command,


Now as soon as the folder opens click on the .db file and move to trash.

Note: Before performing this action close the Safari app.

Solution 3: Update macOS to Speed up internet on mac Mojave 

If you haven’t updated macOS, then you might face several issues. The new update contains all the bug fixes probably it will also include Safari. So update macOS Mojave to the newest version, if available.

Step #1: Open “Mac App Store” and check for the updates.

Solution 4: Disable Dashboard Off

We can’t say it will be a proper solution for your Safari running slow on macOS Mojave. But I have seen some people Safari issue has been solved by disabling dashboard.

Step #1: Open “Apple” menu and click “System Preferences”.

Step #2: Click on “Mission Control”.

Step #3: Turn off “Dashboard”.

Solution 5: Change Search Settings in Safari on Mac

All the time we are accusing Safari of being slow, but every time it isn’t possible. There is a possibility that the search browser you are using is facing situations, and so Safari running slow on macOS Mojave. If this is the problem, then we can fix it by changing the search settings.

Step #1: Go to “Safari” app and open “Preferences”.

Step #2: Click on the “Search” tab.

Try to change the search engine to Bing. After that restart the Safari and observe that the issue is fixed or not.

Solution 6: Change Network Service also works to Speed up internet on mac Mojave 

If you have connected Mac to Wi-Fi as well as Ethernet, then it can be a reason behind Safari running slow on macOS Mojave. Remove on one network connection and observe if it has any effect on it.

By default, Mac will give priority to only one network. But if you want, then you can change the order of the priority and switch connections.

Here’s how you can change the priority of the network service

Step 1: Open “Apple” menu and click on “System Preferences”.

Step 2: Next, click on “Network” and then open “Action pop-up” menu.

Step 3: Select “Set Service Order” and arrange the network service by dragging them.

Step 4: Click “OK” and “Apply” changes by clicking on it too.

Solution 7: Remove Preferences File

We can take our chances to fix Safari running slow on macOS Mojave by this solution.

Step 1: Click on “Finder” and tap on “Go”.

Step 2: Next, click on “Go to Folder”.

Step 3: Enter the path,


Now locate the and remove it.

Solution 8: Change DNS Settings

By default, our DNS settings are provided by ISP. Instead this time we will try to use public DNS which might boost up Safari. The best DNS server is Google DNS, probably everyone including me is using Google DNS.

Step #1: Click to open “Apple” menu and then open “System Preferences”.

Step #2: Open “Network”.

Step #3: Select the network on which your MacBook is connected.

Step #4: Click on “Advanced”.

Step #5: Now tap (+) and add DNS server.

Step #6: and are the Google DNS servers for you.

Solution 9: Change login account on Mac running Mojave

Another weird solution for Safari running slow on macOS Mojave change the user account. Create a new account and try to use Safari, see if anything changes.

Besides we will use Disk Utility to fix this issue. Search Disk Utility from the Spotlight.

Step #1: Once “Disk Utility” is on screen tap on Hard Drive of Mac.

Step #2: Now, click on “First Aid” tab and click “Run”.

Solution 10: Reinstall macOS Mojave

Unfortunately, if none of the above work for you then you have to follow this the extreme path. Other than Safari if you are facing any problems in Mac or MacBook, then it will be fixed with this troubleshoot.

Do you find any other trick to fix Safari running very slow on Mac after update Mojave? Let me know in the comments!

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About jaysukh patel

Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [email protected] [OR] [email protected]

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One comment

  1. “However, the reason behind this is, the person who have Mac or iPhone they face any problem in Safari, they move to Google Chrome.

    Instead, they should try to fix Safari complications”

    No, they should use whatever works. Safari has no excuse, I’m sorry.

    PS: Yes I miss the handover and shared ios macos tabs too… but, a non-functional browser is a non-functional browser…

    PS2: I am still wasting time with relogins from your fist solution… So you say I should reinstall Mojave… when there are other browsers that work just fine… again: looool

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