If 5KPlayer occupies your CPU when it is not used, find below tips:
- Press F2 to go Settings, set "Open at login" as "NO".
- And you can also change "Close player" as "Exit" instead of "Minimize to tray".
You can find more settings about 5KPlayer below:
- Right click on the main UI, then you can unassociate the file format, change playback speed, etc.
When AirPlay failed please check: