First the setting knob may be off, mine is 50 Degrees. so you need a thermometer to measure the oven temp with
Second a pizza stone, or a unglazed ceramic tile (set it on the bottom, on the metal tray that is just above the burner) this will tend to even out the heat.
I do this. don't do pizza but do do cookies, Takes me a batch or two to get time right but .. Well when I take 'em to a pot luck they are Vacuum cleaner food (When it's time to go home the plate looks like someone went by with a high power Shop Vac and sucked 'em all up).