Pizza not crispy after cooling it down
My pizza is pretty crispy when I take it out if the oven, but after cooling it down on the wire rack for couple minutes it looses almost all the crisp. I cook it at max temp using pizza stone. Fan electric oven. I cook it for about 6 minutes until crust is gold and cheese starts to brown. Approx 60 hydration
My dough is
200g of flour (10g protein fine)
120 g water
5 g fresh yeast
1/2 tsp sugar and salt
1 tsp of olive oil.
I preferment first. Dissolve yeast in warm water then add half of the flour. Let it sit covered for 15 minutes. Then i add rest of the flour and ingredients and knead for about 10 minutes. Make a ball and put in oiled bowl for approx 30 minutes. Then take it out dough feels light puffy and airy. I shape a ball and leave it under bowl on floured surface for approx 45 minutes. I poke it to check if proofed. It retains shape and has bubbles looks proofed to me. Then I cook it.its stretched pretty thin I precook dough with sauce only for about 2 minutes. Then put rest of the ingredients and cooked more. Pizza is not soggy after cooking and it's pretty crispy. Dough seems to be cooked no raw flour . Even the outside crust looses almost all crispness after cooling.
What I am doing wrong??