So it looks like you gave me currency I can't use. I also read on the other Wildfire demo that there are problems with all versions of this game, including this one, the other HTML one, and the downloadable Windows version. If I speed up the game, I'm told, my fireballs will miss the targets, which was my experience years ago when I first played this game.
Maybe you're not interested in quality control so much as using users as beta testers. If you can't keep a sped up game synchronized, it's a disappointment that your game or games have been so prominently listed on Itch.io, which I'd like to believe is better than unsynchronized games and those who make them.
When I clicked to Quit instead of restart, the game froze and when I refreshed the page, it seemed I was starting all over with no option to spend any currency.
You can't even hold to your own in-game logic. I'd rather merely play games so I can move onto other things, at least other games, instead of being responsible for disappointing users on a simple tower defense game with cards between rounds.
Maybe you need to go back to secondary or elementary school and learn how to use a ruler and a calculator instead of being little more than a bad Mario Maker user of pre-processed developer platforms.