Both sides have their own OODA loops. The phrase you hear a lot (Hollywood loves it) is: "get inside their OODA loop", which means to execute your loop faster than theirs so you are responding & acting to your observations before they can respond & act to theirs.
It may be that one side's OODA loop is dysfunctional - perhaps they have to wait on higher headquarters to respond, or has an indecisive leader - before acting and that introduces a delay that an opponent can take advantage of.
How to get a tighter OODA loop? Practice. And modeling/war-gaming in advance any potential actions so your responses become automatic. Or at least "good enough".
