How are you measuring power?

The idea of a further forward saddle for TT is that when your back is horizontal you almost have to or you can't breathe.

I run my saddles on all my road bikes all the way back with setback seatposts, but that's just me. YMMV. I also like my arms relaxed for long distance work, plus more extension is more aero and more comfortable for me.

There is no one perfect saddle position. For road bikes, it's a compromise between climbing and aero. For TT bikes, no need to compromise. TT bikes have a more vertical seatpost and the saddle all the way forward, though the UCI limits saddle position w/r to bottom bracket.

Using your road bike for TT, you might want to move the saddle forward, though since I don't train with it that way, I don't do that myself. Your short term power will be no better, but your long term TT power might be because of better breathing.

Many long distance cyclists move their cleats back. However IME cleat under ball of foot gives the most power. I have no trouble riding long distance with the forward cleat placement, though others do. I normally ride with relaxed calves, pedaling with my shoe heel cups., never toe down. That's probably a reason that the forward cleat placement doesn't tire me. But when I want extra power on a short climb, I can ankle very strongly and get noticeably more power from the pedal stroke.