Your max cadences are way too low. Adjust your gearing lower where you max out at around 140rpm. So, probably 47/13 or 48/13.
You are bogged down and you never get "on top" of the gear.
Cadence is your key metric. Not chainrings or cogs.
Work to stay in the 130-140RPM cadence range during the timed part of your flying 200. That's where the sweet spot of torque can cadence happens.