I notice that often that my w/kg does not correlate with other riders. Given all the variable with power output (watts) relative to weight, similar watt/kilogram between riders should yield similar speed/performance. I have a Wahoo Kickr and I am fairly certain that my performance in real world riding, compared to other well conditioned riders, is far more superior than on Zwift.
Yes I have done the spin down and I have tire changing the resistance from max to off.
Thank you in advance,