There you go.
Start doing high effort intervals. Also, plan on adding mass.
I am sitting at about 66 Kg right now, with a similar height and FTP. But I also do a lot of sprint work as I race MTB and do a lot of rock climbing. If I dropped some more fat I could get to 64 Kg, 63 is a huge stretch without getting uncomfortable in life and potentially losing upper body muscle mass that I don’t want to lose. 65 is my happiness sweet spot (I get to eat lots of cake still, but also decent wait).
But also, my GF last night “I’m glad you wore shorts tonight, I got to see your legs.” when we went to the climbing gym (I normally climb in pants). I honestly don’t care what I look like, but, that is kinda nice to hear.