I'm a long-time Prompt user, and I just purchased Blink on the App Store after seeing that mapping Caps Lock to CTRL is supported. It does seem to work, although not really as consistently as I'd like it to. I'm using an iPad Air 2 and the Microsoft Universal Foldable Keyboard, for reference.

When I try to use, say, CTRL+V in Vim to do a block selection, it will assume I pressed V by itself unless I hold Caps Lock for about half a second before pressing V. Furthermore, it will toggle the Caps Lock light on my keyboard (which I understand can't be fixed), which is a problem because if I exit Blink, the Caps Lock key is now reversed if I exited Blink while the Caps Lock key was still active.

Perhaps there's a way to track if Caps Lock had been pressed an even or odd number of times, and send some signal back to the OS to correct this behavior?

I'm not sure what needs to be fixed in order to get the Caps Lock functionality to work without a delay.