Gates.
During a contest.
Way harder to get good speeds compared to free GPS sailing.
Its really not comparable as much as we wish it were

.
AA is in another league in speedsailing and has been for a long time. Rarely does he get beaten. I don't think any of the top GPS guys beat him in contest, and if they did its not often and usually down to who got the "lucky gust". In terms of consistenly topping the contest speeds- he's clearly in another league. Where the conditions aren't perfect he makes it look easy and blows the other guys away.
Free sailing on a lake with no constraints is getting a free pass. You can start/end wherever the gust is and sail as broad as you like. Even at la franqui you can sail fast either side of where the gates were so for free GPS sailing its a huge advantage in picking the gust or extending the run to pick the best segment.
Also the contest is not running every day there is wind. There are and have been far better conditions at LF over the past years which werent on contest days where the wind is a touch stronger and broader -easier to go fast.
So many ducks have to line up in a contest environment, so AAs 43kts NM in this contest is incredibly impressive- especially since the conditions weren't close to perfect.