You should dry your vegetables and press all the water out of them with a paper towel. And I mean you need to press them pretty hard and get the maximum amount of water out. You could par bake your crust if it’s still soggy even after drying your veggies. Another way is to make a cast iron pizza where you start the pizza for the first two minutes on the stove top while it’s in the cast iron pan and put it in the oven for the remainder of the time (15min at 500)

Hope this helps