It is too cold for a thin pizza (Napoletana). The temperature must be at around 450C! The cooking time is too long and will make it "biscotata" (Amazing video https://www.youtube.com/watch?v=vV4gegZ7JNU ).

With such "cold" oven the best is to cook "nonna" pizza (grand ma'). I think this one is great: https://www.youtube.com/watch?v=D2ws4sTKrdI For the dough, you can use this ones as inspiration: https://www.youtube.com/watch?v=gijjMJiR_q0 https://www.youtube.com/watch?v=LcD999Ci78E https://www.youtube.com/watch?v=1-SJGQ2HLp8

Best tip to avoid uncooked dough under the tomato sauce: remove all the possible water from the tomato sauce.