There are several easy ways to improve this deck, starting with cutting out
Temple of the False God, the ravnica bounce lands, and literally every other land that always enters tapped. It would probably be better to run basics.
After that, your average mana cost is a whopping 4.67. With numbers like that, you'll have a hard time getting to play the game. You probably want to aim somewhere in the 3.2-3.5 range for this deck and add some more mana ramp.
I can give you more detailed feedback, if you want, but that's a start.