Thanks for playing and for the feedback! Yup, I agree about the missing sfx and a lack of a better death screen. They were on the list, but I didn't have the time to do them, hopefully I'll fix that on the post-jam update.
About the "slowness" of it, I'm not sure if I understand it. The game was designed around paying attention to multiple elements: the spawn points, their timers, the charge on each spell, and all of the enemies/hazards on the screen. Since I didn't want the player to be overwhelmed and for them to make decisions consciously, I can't make stuff happen too quickly, so that may explain the "slow paced" feeling you had. But I'm open to any suggestions that could improve on the game feel.