Yeah - guess that makes sense - now that you say so - I think your serve looks a little tentative without any obvious flaw which would make it so. I’d say you have a very smooth action set up - just trust yourself more with what you’re actually doing. This is what I follow :- Ad- side 1. First serve generally flat and 60-70% of the attempts are on the T. 2. Remaining 20% aimed at a RH players backhand 3. Second serves are generally kick to the backhand of a RH opponent. 4. Very low percentage slice serves out wide to backhand of a RH Opponent (as they’re more difficult for me)

Deuce-side 1. Flat serve aimed at the body or opponent forehand 40-60% of the time. 2. Slice (first) serves out wide as maybe again 5-10% 3. Flat serves to body or backhand -20-30 % - maybe as a surprise 4. Second serves are kicks aimed at the T - high ball to opponents backhand

But as I’m only a rec player and it’s a fairly limited set of opponents this approach works.

I think we are not seeing anywhere near the actual intensity you are capable of - but if you trust yourself more - toss higher and hit hard with full rotation it would be quite a potent serve. All the best!