Your speed needs to be right back near the minimum, and you come in low over the trees. You may even need to increase a bit of power on as you land, and you’ll definitely need some to get up the hill.
It’s one of the hardest strips in the French Alps.
You’ll actually not need to use that much strip. If you’re landing half way up, that will still be fine. Instead of descending all the way down to the threshold, try staying a bit above it, flying level, and letting the runway come up to meet you, then flaring with the nose higher than the runway slope.
Once you land, keep straight and add power.
These guys and this strip inspired me to make the taildragger Robin!
https://flightsim.to/file/11788/robin-dr250-160-capitaine