My tomato sauce is very watery

My tomato sauce is very watery

It has flavor, but its consistency is too thin. Will letting sit over medium low heat evaporate enough to increase its density or is this useless? Would bringing it to a boil help more. I don't want to ruin its flavor and am afraid bringing it to a boil with high heat will do just that. Please like and subscribe to the channel to get more videos! #sauce #tomatoes #spaghetti #reduction