4K videos are not working well

I tried to play some 4K movies but no application was able to play it smoothly. I tried it with vlc and mpv, both are not working well. Is it a hardware problem or software problem?

My system information-
Operating System: EndeavourOS
KDE Plasma Version: 5.25.3
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5
Kernel Version: 5.15.55-1-lts (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i3-5005U CPU @ 2.00GHz
Memory: 7.7 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 5500
Manufacturer: Dell Inc.
Product Name: Inspiron 3558

I doubt a GPU that old has hardware support for decoding hevc/h265 so it is probably being software decoded on the CPU. Software decoding 4k video is a tall order for that CPU.


So I cant play 4k videos?

4K videos are not working well

You could try h264 instead, but as mentioned above, that processor is probably too old.