Good evening, centerfield.
Ordinarily I don’t advocate changing the arm angle, but if with your present one you’re missing high because of the low elbow you might consider it. Ideally the elbow should be level with your shoulder, neither high nor low, and this would help you get your pitches down in the strike zone. I can think of few things worse than hanging one up there in the batter’s wheelhouse where he can get good wood on the ball , end result BLAM, over the fence it goes! Try a 3/4 arm slot and see where it takes you.
You also want to get more consistency with your pitches. When I was a little snip, I would get a catcher, and we would play a game we called “ball and strike” in which he would position his mitt in all sorts of places, high, low, inside, outside, every which way but standing on his head :lol: and what I would do is work on getting the ball smack-dab into the pocket of the mitt. What a satisfying feeling it was to hear that “thwack” as the ball hit the pocket. Being a sidearmer, I worked particularly on getting good breaks on my assortment of snake-jazz, and it paid off. (My best pitch, which I learned a bit later on, was a very nasty slider which I nicknamed “Filthy McNasty” after a character in a W.C. Fields movie because it was just that.) Anyway, don’t worry about what you perceive to be a loss of velocity—speed may be all well and good, but it’s not nearly as important as location, getting your pitches to go where you want them to.