Again, if you’re certain that you’re speaking to peers, that’s fine. But if you’re trying to communicate even a little more widely, then initialisms and abbreviations are obstacles to overcome. And once you’re in the habit of using the short forms, it gets harder and harder to apply context-shifting in your language. So the safest habit to form is to generally avoid using acronyms and initialisms.
This is a good reminder from Jeremy. He mentions performance in particular (we do love our acronyms). I try to avoid this, but I know I’ve been guilty of it many times. Something to improve on for sur.