We are aware of the "track Caps Lock" problem. iOS actually has an option to disable caps on the accessibility but still doesn't work with external keyboards. Hopefully soon.
Thanks for the heads up about the delay. I have only see that problem once with the iPad when I had another combination, do you have any other combination like caps as ESC? I definitely haven't seen that with other keys, and I'm really picky about my Cmd as Ctrl on Emacs :D