A 4K video contains more data than Standard, HD, or Full HD video. This is more convenient in case you need to crop the resulted video, or stabilize it later on, without losing too much information. Downscaling 4K videos to Full HD also produces a more sharp image.
It becomes more common for GoPro cameras and latest mobile devices to shoot in 4K.
However, such videos still have higher requirements for your PC to process, since they have higher bitrate, and increase the load on your computer.
*Movavi Video Editor has a feature called HD Clip Optimization (like proxy editing), that allows the program to create miniatures of the videos, and work with them instead of the originals.
Requirements:
- At least 4 core processors is desirable - Intel 6th Gen or newer CPU, or AMD equivalents, such as Ryzen 5 or 7th line of processors.
- 16 GB RAM minimum for 4K videos.
- The video card at least 4 GB, Nvidia GTX 1650, preferably newer - for example Nvidia RTX 2060 or 3060, AMD Radeon R5 or later.
Additional tweaks that may help:
1. Update your graphic card drivers.
2. If you are editing on a laptop, make sure it is plugged in.
3. Copy your 4K videos to an internal SSD for faster processing.
4. Disconnect other external displays.
5. If you have two video cards, you can try switching between them.
Often 4K videos are recorded in H265 codec, that is not yet fully supported in Movavi. In case of any issues with such videos, you can try converting them as described in this article: