Editing 4K videos requires more computer resources than working with Full HD. If your PC is not powerful enough, you may experience slow preview playback, freezing, or longer export times.
This article explains which PC specifications we recommend for editing 4K videos in Movavi Video Editor and Movavi Video Suite on Windows, and how to improve performance.

For comfortable 4K video editing, we recommend:

• Processor: at least 4 cores
• RAM: 16 GB or more
• Graphics card: a dedicated GPU with at least 4 GB of video memory, such as NVIDIA GeForce GTX 1650, RTX 2060, or RTX 3060
• Storage: an internal SSD for your videos and project files

These are recommended specifications, not minimum system requirements. Performance also depends on video format, frame rate, effects, and project complexity.

Movavi Video Editor includes a feature called Optimize HD clips, which creates lighter copies of your videos for smoother editing.

To enable it:

1. Open Movavi Video Editor
2. Go to Settings → Preferences → Acceleration
3. Enable Optimize HD clips

If preview playback becomes slower or the image looks incorrect, try disabling this option.

For more solutions, see Preview playback is slow.

Some 4K videos use the H.265 (HEVC) codec, which may require additional support on Windows.
If your video doesn't import, shows a black screen, or plays only audio:

1. Check Video doesn't open or import correctly (HEVC / H.265) – Windows.
2. If the issue persists, try converting your video to MP4 (H.264) and importing it again.

Contact Movavi Customer Service if:

• 4K videos continue to freeze or lag after trying the steps above
• the program cannot import or process your 4K videos

Please include:

• your Movavi program and Windows versions
• your PC specifications (processor, RAM, and graphics card)
• when the issue occurs: during import, preview, or export
• a screenshot of any error message, if available