How to Fix Video Lagging Issue on Mac [4 Ways]

Do you have a video lag issue on your Mac? If so, this piece will look at four feasible solutions to help you solve this problem and return to enjoying your video-watching experiences on Mac.

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  • Fix videos with different issues, such as broken, unplayable, no sound, etc.
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It's annoying when your video lags on your MacBook, so this guide will help you fix the problem as soon as possible. You may resolve this video lag issue on Mac using video repair software, repairing the Mac's disk, updating the VLC player, updating the macOS version, etc. 

Fix 1. Fix Video Lag Issue with Video Repair Software for Mac

One of the most common causes of lagging is video corruption, which can be easily fixed with software such as EaseUS Fixo Video Repair. It is compatible with the most recent macOS versions and has an easy-to-use interface. It can resolve various video faults and difficulties.

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  • This software can fix audio not playing on video files, MP4 not playing, and other video corruption issues.
  • Compatibility: This software can run on both Windows and Mac, which is different from other repair programs.
  • EaseUS Fixo Video Repair will resolve other video problems, such as MP4 not sounding on Mac.

EaseUS Fixo is a powerful and dependable video repair program that works well and fixes corrupted videos on Mac in three steps.

Step 1. Launch EaseUS Fixo on Mac

Download EaseUS Fixo on your Mac and launch it. Click "Video Repair" on the left and click "Add Video" to upload your corrupted MP4/MOV/MKV/3GP video files.

Launch EaseUS Fixo on Mac

Step 2. Select the corrupted video and start repair

Select a targeted video and click the "Repair" button to start the single video repairing process. If you want to repair all the videos, select them all and click "Repair All".

Select the corrupted video and start repair

Step 3. View and save the fixed videos

Wait a few minutes, and the corrupted videos will be repaired. The time you wait depends on how corrupted your videos are. Then click the "View Repaired" to preview the videos. To save the fixed video, hit the "Save" button. Keeping multiple videos is okay. Just choose "Save All" to complete.

View and save the fixed videos

Step 4. Run the advanced video repair process

If the quick repair doesn't work, try the advanced repair mode. Choose "Advanced Repair" to start the process. After uploading an example video, select "Confirm".

Run the advanced video repair process

Step 5. View and save the video repaired in advance mode

A window of detailed information about the corruption and sample videos will pop up. Click "Repair Now" to start the process. When the repair is complete, you can view the fixed videos and click the "Save" button to keep the repaired video files on the path you want.

View and save the video repaired in advance mode

If you find this information helpful, please share it with others on social media to assist them in overcoming this common challenge.


Fix 2. Repair the Mac's Disk to Fix the Lagging Problem

If your Mac's main disk is corrupted or faulty, it can cause video lag. You can repair your Mac's corrupt disk and video lag by following these steps.

Step 1. To run the Disk Utility software, navigate to Finder and select "Applications" > "Utilities".


Step 2. Select your Macintosh HD from the sidebar and then "First Aid" from the right-hand list of alternatives.

Step 3. Now, confirm your option by clicking the "Run" button, and wait for the disk to be repaired.

Fix 3. Update Your VLC Player

Due to incompatibility, an outdated version of the VLC media player can cause a blank screen. So, we propose that you update VLC to remedy this video issue. To finish the process, follow the steps outlined below.

Step 1. Open VLC and select the Help menu from the flyout.

Step 2. Open the "Check for Updates" menu.

choose update vlc

It will start the update process from the VLC and connect to the official server to determine whether an update is available. If so, download and apply it. Then, recheck your VLC to see whether the problem has been addressed.

Fix 4. Update the macOS Version

Finally, if the macOS version installed on your system is outdated, it may cause processing latency. To eliminate video lags, you are advised to keep the firmware up to date.

Moreover, Apple has officially named macOS Recovery the "built-in recovery system on your Mac." This means you can use macOS Recovery for various objectives, including restoring files from Time Machine Backup, repairing video and other file problems, and so forth.

Step 1. Visit the Apple Developer website and sign in with your Apple ID, or create one if you don't.

Step 2. Go to "Settings" and select "General".

Step 3. Click "Software Update". and the "i" icon next to "Beta updates."

Step 4. Select "macOS Sonoma Developer Beta".

macOS Sonoma Developer Beta

FAQs on Video Lag Issue on Mac

If you still have some questions about MacBook data recovery, check the quick answers below to help yourself out:

1. How do I fix lag on my Mac?

  • Fix 1. Fix Video Lag Issue with Video Repair Software for Mac
  • Fix 2. Repair the Mac's Disk to Fix the Lagging Problem
  • Fix 3. Update Your VLC Player on Mac
  • Fix 4. Update the macOS Version

2. Why is every video I watch lagging?

It may be caused by the speed of your Internet connection or the computing capability of your Mac Many Internet videos are downloaded as they are viewed.

3. Why is my MacBook struggling to play videos?

A corrupted video may cause lagging or contain missing fragments. Furthermore, the media player you use to play your video may be slow or incompatible with your video format.

4. Why is my YouTube so slow and laggy on Mac?

Sometimes a YouTube website will load incorrectly, causing graphics issues. If you're seeing a full-screen issue because of this, you can fix it by pressing the F5 key or selecting the "Refresh" button to reload the YouTube page. You can also experiment with full-screen mode when Chrome on Mac is not maximized.


Video lagging issues can be caused by either a slow Internet connection or video degradation. To resolve this issue, reinstall or update the macOS version, reset the VLC player, and change the other settings. If all of the previous methods fail, your video is most certainly corrupted, then utilize EaseUS Fixo Video Repair  for assistance.

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About the Author

author Jaden


Jaden is one of the editors of EaseUS, who focuses on topics concerning PCs and Mac data recovery. Jaden is committed to enhancing professional IT knowledge and writing abilities. She is always keen on new and intelligent products.

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