Caps lock remap release delay
You can achieve this with Keyboard Maestro, or probably an alternative.


Disable Caps Lock in System Preferences > Keyboard > Keyboard > Modifier Keys

Create a Keyboard Maestro macro that is triggered by "This device key:" and set it to trigger when the Caps Lock key is released.
Add whatever action you want to remap it to—if I understand your question correctly, you'd want to add "Type Modifiers" and set it to Control.