One problem I’ve encountered is trying to find the right tempo to pace other riders, both human and AI. It seems you make an effort to catch them, then end up blowing past them and it’s hard to adjust your speed to match their effort.
I’ve found that it’s much easier to pace by changing gears than by trying to slow your cadence briefly. I find that when I try to change cadence, there is a lag in the effort and the rider I am trying to pace just opens a gap.
As you approach another rider and feel yourself about to overtake them, click back up a gear and maintain the same cadence. You should be able to slip back in behind them easily and then adjust gears to maintain pace all the while trying to keep cadence steady.
Works for me…