We work on a system by which we can initiate a stimulant for an efficient movement. A needed response i.e. catch, throw, evade, resist, parry, strike. Of which the body already has inherent patterns for those purposes.
You can’t slow down or alter this system to get a better "karate effect".
We have built into our mindset a trial and error self correcting attitude. Karate can not redefine movement for its own purpose or style.