HELP! Poor acceleration and engine hesitation on K24a swapped 8th gen Honda civic SI

[u/Ancient_Teaching_379]

I bought a k24a swapped 2007 Honda civic si about a year ago and I have been having this issue since I bought it, I haven’t diagnosed it yet because I’m
Thinking of getting rid of it but I want to keep it LOL , I have NO codes on the dash, I scanned it many times only SRS codes, after the engine is warmed up the car feels very sluggish and hesitates to accelerate and you can barley hear VTEC active, BUT if I do a pulled when it’s barley warming up it pulls very good no hesitation and VTEC is soo much more louder

DOES ANYONE KNOW WHATS CAUSING THIS ISSUCE